{"id":531,"date":"2020-06-13T12:29:23","date_gmt":"2020-06-13T12:29:23","guid":{"rendered":"https:\/\/thetibble.com\/?p=531"},"modified":"2024-01-05T07:33:34","modified_gmt":"2024-01-05T07:33:34","slug":"bathroom-fan-noise-windy","status":"publish","type":"post","link":"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/","title":{"rendered":"Why Bathroom Fan Makes Noise When Windy?"},"content":{"rendered":"<style>img#mv-trellis-img-1::before{padding-top:25%; }img#mv-trellis-img-1{display:block;}img#mv-trellis-img-2::before{padding-top:72.9%; }img#mv-trellis-img-2{display:block;}img#mv-trellis-img-3::before{padding-top:125.03052503053%; }img#mv-trellis-img-3{display:block;}img#mv-trellis-img-4::before{padding-top:125.03052503053%; }img#mv-trellis-img-4{display:block;}img#mv-trellis-img-5::before{padding-top:100%; }img#mv-trellis-img-5{display:block;}img#mv-trellis-img-6::before{padding-top:125.03052503053%; }img#mv-trellis-img-6{display:block;}img#mv-trellis-img-7::before{padding-top:100%; }img#mv-trellis-img-7{display:block;}img#mv-trellis-img-8::before{padding-top:100%; }img#mv-trellis-img-8{display:block;}img#mv-trellis-img-9::before{padding-top:100%; }img#mv-trellis-img-9{display:block;}img#mv-trellis-img-10::before{padding-top:100%; }img#mv-trellis-img-10{display:block;}img#mv-trellis-img-11::before{padding-top:72.9%; }img#mv-trellis-img-11{display:block;}img#mv-trellis-img-12::before{padding-top:100%; }img#mv-trellis-img-12{display:block;}img#mv-trellis-img-13::before{padding-top:100%; }img#mv-trellis-img-13{display:block;}img#mv-trellis-img-14::before{padding-top:72.9%; }img#mv-trellis-img-14{display:block;}img#mv-trellis-img-15::before{padding-top:100%; }img#mv-trellis-img-15{display:block;}img#mv-trellis-img-16::before{padding-top:72.9%; }img#mv-trellis-img-16{display:block;}<\/style>\n<p>A strong wind can be noisy enough to drown out the sound of the TV or radio as it is. To add in rattling and banging coming from your bathroom fan, well, it&rsquo;s enough to drive a person crazy. <\/p>\n\n\n\n<p>While you can&rsquo;t do anything about the howling of the wind outside, you can stop it from driving up through the bathroom fan ductwork. The possible causes and solutions depend on whether or not your bathroom fan ventilation system is equipped with a backdraft damper.<\/p>\n\n\n<div class=\"lazyblock-nutshell-Z2v6g4j wp-block-lazyblock-nutshell\"><p class=\"has-text-align-left has-text-color has-background\" style=\"background-color:#e7d1b1;color:#575f60;font-size:18px\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"50\" class=\"wp-image-3497\" style=\"width: 200px;\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png\" alt=\"\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png 600w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11-300x75.png 300w\" sizes=\"(max-width: 200px) 100vw, 200px\"><\/noscript><img loading=\"eager\" decoding=\"async\" width=\"200\" height=\"50\" class=\"wp-image-3497 eager-load\" style=\"width: 200px;\" src=\"data:image\/svg+xml,%3Csvg%20xmlns='http:\/\/www.w3.org\/2000\/svg'%20viewBox='0%200%20200%2050'%3E%3Crect%20width='200'%20height='50'%20style='fill:%23e3e3e3'\/%3E%3C\/svg%3E\" alt=\"\" sizes=\"(max-width: 200px) 100vw, 200px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png\" id=\"mv-trellis-img-1\" data-src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png.webp\" data-srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png.webp 600w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11-300x75.png.webp 300w\" data-svg=\"1\" data-trellis-processed=\"1\"><br><strong>If there&rsquo;s no backdraft damper, pressure changes and drafts entering the ducts create vibrations and noise. When dampers are present, blocked or broken flaps and operating mechanisms can allow air in as well. The flaps can also be picked up and dropped by the wind, producing a banging sound.<\/strong> <\/p><\/div>\n\n\n<h2 class=\"wp-block-heading\">When There Is No Backdraft Damper<\/h2>\n\n\n\n<p>If you study <a href=\"https:\/\/thetibble.com\/bathroom-exhaust-fan-termination-requirements\/\">bathroom exhaust fan termination requirements<\/a> in the International Residential Code (IRC), which is applicable in all US states and territories with the exception of Wisconsin, you will find that <strong>backdraft dampers are not a requirement<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles.jpg\" alt=\"Bathroom exhaust fan installed on a wall with gray tiles\" class=\"wp-image-32916\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles.jpg 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-300x219.jpg 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-768x560.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-960x700.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-150x109.jpg 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles.jpg.webp\" alt=\"Bathroom exhaust fan installed on a wall with gray tiles\" class=\"wp-image-32916 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles.jpg.webp 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-300x219.jpg.webp 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-768x560.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-960x700.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles-150x109.jpg.webp 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-exhaust-fan-installed-on-a-wall-with-gray-tiles.jpg\" id=\"mv-trellis-img-2\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<p>However, they are very <strong>helpful<\/strong> and are, thus, <strong>highly recommended<\/strong>. In my opinion, even the most advanced and <a href=\"https:\/\/thetibble.com\/choose-bath-fan\/\" data-type=\"post\" data-id=\"1268\">perfectly sized<\/a> bathroom fan is only half <a href=\"https:\/\/thetibble.com\/how-does-a-exhaust-fan-work\/\" data-type=\"post\" data-id=\"1589\">functional<\/a> without a damper in the ductwork.<\/p>\n\n\n\n<p>When we cover causes of noise when a backdraft damper is present, we will also talk a little bit about how these devices work. <\/p>\n\n\n\n<p>For now, we&rsquo;ll look at what causes wind-related noises in the absence of backdraft dampers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Drafts and Air Pressure Changes<\/h3>\n\n\n\n<p>There&rsquo;s really only <strong>one cause<\/strong> of noise in this case: drafts and air pressure changes. <\/p>\n\n\n\n<p>When there is no damper, <strong>outside air can enter<\/strong> the bathroom fan&rsquo;s ductwork, particularly when the fan is <strong>switched off<\/strong>.<\/p>\n\n\n\n<p>When there are drafts or air pressure changes, this outside air can flow through the ductwork in an <strong>unsteady or turbulent<\/strong> manner, causing vibrations and noise.<\/p>\n\n\n\n<p>These <strong>issues can be exacerbated<\/strong> when there are bends or obstructions in the ductwork as these can create additional turbulence and noise.<\/p>\n\n\n\n<p>While the noise is most noticeable when the fan is off, the wind can also <strong>increase the noise level<\/strong> created by a <strong>fan that is operating<\/strong>. <\/p>\n\n\n\n<p>When the air leaving the ducts <strong>collides<\/strong> with air that is being pushed into it, it creates pressure and pressure changes that rattle the ducts. <\/p>\n\n\n\n<p>Additionally, the <strong>fan has to work extra hard<\/strong> to push the air out against the force of the incoming air, so it may produce whines and other sounds associated with overworked motors.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Solution and Future Prevention<\/h4>\n\n\n\n<p>There is <strong>only one effective solution<\/strong> to this problem. You need to install a backdraft damper. This device only allows air to flow out of the ducts when the fan is on. <\/p>\n\n\n\n<p>Outside air has no access to the ducts, so it cannot rattle through the system or make the fan work harder to exhaust the bathroom air.<\/p>\n\n\n\n<p>By installing and maintaining the damper, you also prevent the problem from arising again in the future.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Backdraft Damper Is Present<\/h2>\n\n\n\n<p>A <a href=\"https:\/\/thetibble.com\/ultimate-backdraft-damper-guide-all-you-need-to-know\/\" data-type=\"post\" data-id=\"2099\">backdraft damper<\/a> is a device equipped with flaps that can only open one direction and which are typically only open when the fan is in operation. <\/p>\n\n\n\n<p>The flaps only open towards the exterior of the house, so only air traveling out can be in the ducts. Outside air should not be able to enter. <\/p>\n\n\n\n<p>There are multiple ways in which the flaps can operate: <\/p>\n\n\n\n<ul>\n<li>Some are <strong>spring-loaded<\/strong> and push open when the pressure behind them increases past a certain point. So, the force of the air being driven through the ducts by the fan overcomes the force exerted by the flap springs and they open. <\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-819x1024.jpg\" alt=\"Parts and how a spring-loaded backdraft damper works infographic\" class=\"wp-image-32917\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-819x1024.jpg 819w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-240x300.jpg 240w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-768x960.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-864x1080.jpg 864w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-960x1200.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-150x188.jpg 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic.jpg 1080w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-819x1024.jpg.webp\" alt=\"Parts and how a spring-loaded backdraft damper works infographic\" class=\"wp-image-32917 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-819x1024.jpg.webp 819w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-240x300.jpg.webp 240w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-768x960.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-864x1080.jpg.webp 864w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-960x1200.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic-150x188.jpg.webp 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic.jpg.webp 1080w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Parts-and-how-a-spring-loaded-backdraft-damper-works-infographic.jpg\" id=\"mv-trellis-img-3\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<ul>\n<li>Some dampers are equipped with <strong>hinged, gravity-operated flaps<\/strong>. The hinges are horizontal and cannot cross the midline, i.e., they can only be pushed out by the air exhausted from the bathroom. Once this pressure ceases, gravity causes the flaps to fall closed.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-819x1024.jpg\" alt=\"Gravity-operated backdraft damper, backdraft and pressure relief damper and round backdraft damper illustration\" class=\"wp-image-32919\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-819x1024.jpg 819w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-240x300.jpg 240w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-768x960.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-864x1080.jpg 864w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-960x1200.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-150x188.jpg 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration.jpg 1080w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-819x1024.jpg.webp\" alt=\"Gravity-operated backdraft damper, backdraft and pressure relief damper and round backdraft damper illustration\" class=\"wp-image-32919 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-819x1024.jpg.webp 819w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-240x300.jpg.webp 240w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-768x960.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-864x1080.jpg.webp 864w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-960x1200.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration-150x188.jpg.webp 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration.jpg.webp 1080w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-backdraft-and-pressure-relief-damper-and-round-backdraft-damper-illustration.jpg\" id=\"mv-trellis-img-4\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<ul>\n<li>Some dampers are <strong>electrically opened<\/strong>. Most often, the operation is linked to the fan&rsquo;s. So, when the fan is turned on, a signal is sent to the damper to open. When the fan switches off, the damper closes, although there may be a slight delay to ensure all the steamy air is out before the flaps shut.<\/li>\n<\/ul>\n\n\n<div class=\"lazyblock-amazonblock-Z3xRGU wp-block-lazyblock-amazonblock\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B078P2S1PZ\" data-aawp-product-id=\"8058\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper Air Duct Fan  6 inch  Usually Closed 24 Volt Thermostat Compatibility 24VAC\/20VA Plug-in Transformer Included Silver\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B078P2S1PZ?tag=hvacbuzz-20\" title=\"Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper Air Duct Fan (6 inch), Usually Closed, 24 Volt Thermostat Compatibility, 24VAC\/20VA Plug-in Transformer Included, Silver\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41r4nK0LHEL.jpg\" alt=\"Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper Air Duct Fan (6 inch), Usually Closed, 24 Volt Thermostat Compatibility, 24VAC\/20VA Plug-in Transformer Included, Silver\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41r4nK0LHEL.jpg\" alt=\"Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper Air Duct Fan (6 inch), Usually Closed, 24 Volt Thermostat Compatibility, 24VAC\/20VA Plug-in Transformer Included, Silver\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B078P2S1PZ?tag=hvacbuzz-20\" title=\"Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper Air Duct Fan (6 inch), Usually Closed, 24 Volt Thermostat Compatibility, 24VAC\/20VA Plug-in Transformer Included, Silver\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            Suncourt ZoneMaster Fully Adjustable Motorized Airflow Control Zone Damper Air Duct Fan (6 inch), Usually Closed, 24 Volt Thermostat Compatibility, 24VAC\/20VA Plug-in Transformer Included, Silver        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>ECONOMIC SOLUTION &ndash; Protect your comfort &amp; your wallet by limiting heating and cooling expenses in your space. This cost-efficient zone damper limits the need for excessive HVAC use and keeps your...<\/li><li>TOTAL ZONE CONTROL &ndash; This ZoneMaster gives you complete individual control over the climate in your space. Customize and maintain the temperature in specific rooms of your home with these zone...<\/li><li>ENERGY EFFICIENT DESIGN &ndash; Take control of your comfort and preserve energy by using these automated duct dampers. When power is not supplied, the damper stays closed.<\/li><li>FRESH AIR INTAKE &ndash; Improve the quality of air in your home by installing a fresh air intake system with a Suncourt motorized airflow damper. Once the damper is closed, it will block drafts, airflow...<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$75.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-5\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B078P2S1PZ?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2024-04-07 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p><\/div>\n\n\n<p>Backdraft dampers can be fitted at different places in the ventilation system, so keep that in mind when looking to check if you have one and identifying the most likely cause.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-819x1024.jpg\" alt=\"Bathroom fan ductwork connected to a vent on the roof with possible locations of backdraft damper illustration, bathroom and attic\" class=\"wp-image-32920\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-819x1024.jpg 819w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-240x300.jpg 240w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-768x960.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-864x1080.jpg 864w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-960x1200.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-150x188.jpg 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration.jpg 1080w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-819x1024.jpg.webp\" alt=\"Bathroom fan ductwork connected to a vent on the roof with possible locations of backdraft damper illustration, bathroom and attic\" class=\"wp-image-32920 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-819x1024.jpg.webp 819w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-240x300.jpg.webp 240w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-768x960.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-864x1080.jpg.webp 864w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-960x1200.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration-150x188.jpg.webp 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration.jpg.webp 1080w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Bathroom-fan-ductwork-connected-to-a-vent-on-the-roof-with-possible-locations-of-backdraft-damper-illustration.jpg\" id=\"mv-trellis-img-6\" data-trellis-processed=\"1\"><\/figure>\n\n\n<div class=\"lazyblock-amazonblock-Z13kP0u wp-block-lazyblock-amazonblock\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B076QNM3X8\" data-aawp-product-id=\"8059\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan 50-80-110 CFM  White\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B076QNM3X8?tag=hvacbuzz-20\" title=\"Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan, 50-80-110 CFM , White\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31+IM9P81QL.jpg\" alt=\"Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan, 50-80-110 CFM , White\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31+IM9P81QL.jpg\" alt=\"Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan, 50-80-110 CFM , White\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B076QNM3X8?tag=hvacbuzz-20\" title=\"Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan, 50-80-110 CFM , White\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            Panasonic FV-0511VQC1 WhisperSense DC Ventilation Fan, 50-80-110 CFM , White        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>Installation: Features a 4 or 6-inch duct adaptor ideal for renovations, assisted living and dorms<\/li><li>Precision Spot Ventilation: Quiet and powerful ventilation while removing moisture and pollution<\/li><li>Dual Sensor Technology: Provides built-in redundancy for automatic moisture and odor control<\/li><li>Flexible Installation: Comes with Flex-Z Fast bracket for easy, fast and trouble-free installation<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$213.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-7\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B076QNM3X8?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2024-04-07 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p><\/div>\n\n\n<h3 class=\"wp-block-heading\">Broken Backdraft Damper Flaps<\/h3>\n\n\n\n<p>If you are harassed by a noisy fan every time there is wind outside, it&rsquo;s time to check your backdraft damper. <\/p>\n\n\n\n<p>Regardless of the type of backdraft damper that you have, the flaps can break.<\/p>\n\n\n\n<p>They can <strong>warp, crack, and chip<\/strong>, depending on the quality of the material, how well they are handled from production to installation to maintenance, and what kind of environment they are exposed to.<\/p>\n\n\n\n<p><strong>Harsh sun, frequent driving rain, debris<\/strong> tossed by strong winds, all of these things can weaken and damage the flaps of backdraft dampers. <\/p>\n\n\n\n<p><strong>Low-quality material<\/strong> is more likely to be influenced by these kinds of mechanical pressures and much more quickly.<\/p>\n\n\n\n<p>Any <strong>production fault or damage<\/strong> during shipping, installation, or maintenance can immediately compromise the flaps or cause weakness that predisposes the flaps to failure.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Solution and Future Prevention<\/h4>\n\n\n\n<p>Unfortunately, <strong>repairing<\/strong> the flaps a backdraft damper is <strong>not a viable option<\/strong>. In these cases, you will need to replace the backdraft damper. <\/p>\n\n\n\n<p>Future prevention involves <strong>choosing a good damper<\/strong> and maintaining it well.<\/p>\n\n\n\n<p>I personally prefer the spring-operated backdraft dampers. They are more resistant to the effects of wind than gravity-operated dampers, and they function mechanically as opposed to electrically, so there is one less component that can go wrong. More on this in later sections.<\/p>\n\n\n\n<p>I can <strong>recommend the AC Infinity spring-operated damper<\/strong> if you have round bathroom fan ducts.<\/p>\n\n\n\n<p>It comes in three different sizes, four-inch, six-inch, and eight-inch, and it has a rubber seal for preventing leaks and drafts.<\/p>\n\n\n<div class=\"lazyblock-amazonblock-1VHe4x wp-block-lazyblock-amazonblock\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B0842XLY96\" data-aawp-product-id=\"7885\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"AC Infinity 6  Backdraft Damper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B0842XLY96?tag=hvacbuzz-20\" title=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41pa9NSe7cL.jpg\" alt=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41pa9NSe7cL.jpg\" alt=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0842XLY96?tag=hvacbuzz-20\" title=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            AC Infinity 6\" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.<\/li><li>Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.<\/li><li>Mounts horizontally or vertically to prevent backflow and debris from entering ducting.<\/li><li>Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$18.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-8\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B0842XLY96?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B0842XSTV9\" data-aawp-product-id=\"8032\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"AC Infinity 4  Backdraft Damper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4&rdquo; Ducting in Range Hoods and Bathrooms Fans\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B0842XSTV9?tag=hvacbuzz-20\" title=\"AC Infinity 4' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41nAGzohYML.jpg\" alt=\"AC Infinity 4' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4&rdquo; Ducting in Range Hoods and Bathrooms Fans\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41nAGzohYML.jpg\" alt=\"AC Infinity 4' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4&rdquo; Ducting in Range Hoods and Bathrooms Fans\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0842XSTV9?tag=hvacbuzz-20\" title=\"AC Infinity 4' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            AC Infinity 4\" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4&rdquo; Ducting in Range Hoods and Bathrooms Fans        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.<\/li><li>Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.<\/li><li>Mounts horizontally or vertically to prevent backflow and debris from entering ducting.<\/li><li>Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$16.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-9\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B0842XSTV9?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B0842Y637Z\" data-aawp-product-id=\"8033\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"AC Infinity 8&rdquo; Backdraft Damper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8&rdquo; Ducting in Range Hoods and Bathrooms Fans\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B0842Y637Z?tag=hvacbuzz-20\" title=\"AC Infinity 8&rdquo; Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41CEC2cu95L.jpg\" alt=\"AC Infinity 8&rdquo; Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8&rdquo; Ducting in Range Hoods and Bathrooms Fans\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41CEC2cu95L.jpg\" alt=\"AC Infinity 8&rdquo; Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8&rdquo; Ducting in Range Hoods and Bathrooms Fans\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0842Y637Z?tag=hvacbuzz-20\" title=\"AC Infinity 8&rdquo; Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            AC Infinity 8&rdquo; Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 8&rdquo; Ducting in Range Hoods and Bathrooms Fans        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.<\/li><li>Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.<\/li><li>Mounts horizontally or vertically to prevent backflow and debris from entering ducting.<\/li><li>Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$23.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-10\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B0842Y637Z?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2024-04-07 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p><\/div>\n\n\n<p>The quality of the AC infinity dampers can prevent them from wearing out as quickly as cheaper versions. They are also less likely to start off with manufacturing or handling defects.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Obstructed Flaps<\/h3>\n\n\n\n<p>When you investigate your backdraft damper, you may be lucky enough to discover nothing wrong with the flaps other than the fact that they are being <strong>held open by an obstruction<\/strong>. <\/p>\n\n\n\n<ul>\n<li><strong>Dirt<\/strong> can build up at the damper and prevent the flaps from sealing.<\/li>\n\n\n\n<li><strong>Leaves<\/strong> can get wedged in the flaps after a storm.<\/li>\n\n\n\n<li>Insect <strong>carcasses<\/strong> can stop the flaps from closing properly.<\/li>\n\n\n\n<li>Birds and small mammals can build their <strong>nests<\/strong> in the duct and obstruct the damper flaps.<\/li>\n<\/ul>\n\n\n\n<p>When the flaps are held open, outside <strong>air is able to enter the ductwork<\/strong> and create noise as described in the section on drafts and air pressure changes.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Solution and Future Prevention<\/h4>\n\n\n\n<p>Simply <strong>remove the obstructions<\/strong> with whatever tools will work without damaging the damper, and set up a regular checking schedule to ensure that it doesn&rsquo;t happen again.<\/p>\n\n\n\n<p>You can also <strong>cover the terminal vent with a screen<\/strong> to prevent larger debris and animals from getting to the damper.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Issues With the Flap Operating Mechanisms<\/h3>\n\n\n\n<p>Electrically-operated dampers can fail. The device may <strong>not receive or respond to the signal<\/strong> sent when the fan is turned off. The <strong>flaps can then remain open<\/strong> and outside air has access to the ductwork.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper.jpg\" alt=\"Electrically-operated backdraft damper illustration\" class=\"wp-image-32921\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper.jpg 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-300x219.jpg 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-768x560.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-960x700.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-150x109.jpg 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper.jpg.webp\" alt=\"Electrically-operated backdraft damper illustration\" class=\"wp-image-32921 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper.jpg.webp 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-300x219.jpg.webp 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-768x560.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-960x700.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper-150x109.jpg.webp 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Electrically-operated-backdraft-damper.jpg\" id=\"mv-trellis-img-11\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<p>The failure of these electrical devices can be the result of manufacturing defects, handling\/installation damage, power surges, water damage, etc.<\/p>\n\n\n\n<p>Gravity-operated dampers cannot fail in the same way. They will <strong>always close<\/strong> once the pressure of outgoing air ceases. <\/p>\n\n\n\n<p>However, they can <strong>fail by responding to the incorrect airflow<\/strong>.<\/p>\n\n\n\n<p>Particularly if your damper is located at or <strong>near the terminal vent<\/strong>, strong enough gusts of air coming from the right direction can pick the flap up.<\/p>\n\n\n\n<p>This has a two-fold <strong>implication on noise<\/strong>:<\/p>\n\n\n\n<ul>\n<li>Firstly, when the flaps are open, <strong>air can enter the ducts<\/strong> and rattle through the length of them. <\/li>\n\n\n\n<li>Secondly, when the <strong>flaps are dropped again<\/strong> as the gusts subside, it can create a <strong>banging<\/strong> noise, which reverberates through the ductwork.<\/li>\n<\/ul>\n\n\n\n<p>The <strong>springs of a spring-operated damper can fail<\/strong>, meaning that they do not press the flaps all the way closed when the bathroom fan is switched off.<\/p>\n\n\n\n<p>This allows <strong>air to flow into the ducts<\/strong> and cause vibrations and noises.<\/p>\n\n\n\n<p>All things considered, I feel that a spring-operated damper is least likely to fail, which is why I previously claimed that it is my first choice.<\/p>\n\n\n\n<p>If your bathroom fan is on its last legs anyway, you also have the option of installing a unit in which the <strong>exhaust fan comes with an integrated spring-loaded damper<\/strong>, such as the Panasonic FV-0511VQC1.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Solution and Future Prevention<\/h4>\n\n\n\n<p>If the flap-operating mechanisms of <strong>electric and spring-operated<\/strong> dampers are broken, then you will need to <strong>replace the whole device<\/strong>.<\/p>\n\n\n\n<p>You might be able to repair the electrical unit of the former, but likely it is not worth the effort.<\/p>\n\n\n\n<p>If your <strong>gravity-operated<\/strong> backdraft damper is playing up, however, there are some <strong>options<\/strong> other than replacement (with a different type of backdraft damper).<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><em>Foam Padding<\/em><\/h5>\n\n\n\n<p>If the issue is primarily the <strong>banging noise<\/strong>, you can use self-adhesive foam stripping or foam dots to stop the flaps from hitting metal-on-metal as they drop.<\/p>\n\n\n<div class=\"lazyblock-amazonblock-ZjYFWK wp-block-lazyblock-amazonblock\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--ribbon aawp-product--sale aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B071RDDC2R\" data-aawp-product-id=\"8035\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"MAGZO Weather Stripping Door Seal 1 Inch Wide X 1\/8 Inch Thick Adhesive Foam Tape Soundproof Weatherstripping for Windows 2 Rolls Total 33FT Black\">\n\n    <span class=\"aawp-product__ribbon aawp-product__ribbon--sale\">Sale<\/span>\n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B071RDDC2R?tag=hvacbuzz-20\" title=\"MAGZO Weather Stripping Door Seal, 1 Inch Wide X 1\/8 Inch Thick Adhesive Foam Tape Soundproof Weatherstripping for Windows, 2 Rolls Total 33FT Black\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/519oLkGxiXL.jpg\" alt=\"MAGZO Weather Stripping Door Seal, 1 Inch Wide X 1\/8 Inch Thick Adhesive Foam Tape Soundproof Weatherstripping for Windows, 2 Rolls Total 33FT Black\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/519oLkGxiXL.jpg\" alt=\"MAGZO Weather Stripping Door Seal, 1 Inch Wide X 1\/8 Inch Thick Adhesive Foam Tape Soundproof Weatherstripping for Windows, 2 Rolls Total 33FT Black\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B071RDDC2R?tag=hvacbuzz-20\" title=\"MAGZO Weather Stripping Door Seal, 1 Inch Wide X 1\/8 Inch Thick Adhesive Foam Tape Soundproof Weatherstripping for Windows, 2 Rolls Total 33FT Black\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            MAGZO Weather Stripping Door Seal, 1 Inch Wide X 1\/8 Inch Thick Adhesive Foam Tape Soundproof Weatherstripping for Windows, 2 Rolls Total 33FT Black        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>SIZE OF THIS FOAM TAPE - 1 inch W x 1\/8 inch T x 16.5 ft L x 2 rolls. You can cut the single-sided door weather stripping into any length you need by using a blade.<\/li><li>STRONG ADHESIVE - The door weather stripping adopts a stronger adhesive backing which ensures the foam tape can stay in place without falling off once applied.<\/li><li>GREEN MATERIAL - The high-density self-adhesive weather stripping is made from harmless CR foam and Neoprene. Excellent sealing quality, resistance to deformation feature, flame retardant, and can be...<\/li><li>EASY TO USE - The release paper of this seal strip is easy to peel off, no tools or drilling needed. This foam sealing tape is suitable for most flat and smooth materials' surfaces like wood, metal,...<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n                                                        \n                            <span class=\"aawp-product__price aawp-product__price--current\">$16.98<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-12\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B071RDDC2R?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B086WTD95C\" data-aawp-product-id=\"8036\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"2400 Pieces Foam Dots Dual-Adhesive 3D Foam Tapes Foam Pop Dots Adhesive Mount for Craft DIY Art or Office Supplies 12 Sheets Round  0.24 Inch\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B086WTD95C?tag=hvacbuzz-20\" title=\"2400 Pieces Foam Dots Dual-Adhesive 3D Foam Tapes Foam Pop Dots Adhesive Mount for Craft DIY Art or Office Supplies, 12 Sheets, Round (0.24 Inch)\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/410LXAJj4XL.jpg\" alt=\"2400 Pieces Foam Dots Dual-Adhesive 3D Foam Tapes Foam Pop Dots Adhesive Mount for Craft DIY Art or Office Supplies, 12 Sheets, Round (0.24 Inch)\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/410LXAJj4XL.jpg\" alt=\"2400 Pieces Foam Dots Dual-Adhesive 3D Foam Tapes Foam Pop Dots Adhesive Mount for Craft DIY Art or Office Supplies, 12 Sheets, Round (0.24 Inch)\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B086WTD95C?tag=hvacbuzz-20\" title=\"2400 Pieces Foam Dots Dual-Adhesive 3D Foam Tapes Foam Pop Dots Adhesive Mount for Craft DIY Art or Office Supplies, 12 Sheets, Round (0.24 Inch)\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            2400 Pieces Foam Dots Dual-Adhesive 3D Foam Tapes Foam Pop Dots Adhesive Mount for Craft DIY Art or Office Supplies, 12 Sheets, Round (0.24 Inch)        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>Package include: one package includes 12 sheets double-sided adhesive foam dots, 200 pieces small adhesive foam dots per sheet, 2400 pieces small adhesive foam dots in total<\/li><li>Eject 3D effect: our adhesive mounts are made of EVA foam, will add dimension to your craft with a slight 3D element, you can also stack the dots together to create more surprises<\/li><li>Suitable size: each adhesive foam dot features round shape, general size to use, they work well on most paper, fabric, plastic, metal and wood surfaces; Please look at pictures for detailed size...<\/li><li>Durable and sticky: our adhesive foam mount is sticky but photo safe, there is no glue reside so you don&rsquo;t have to worry about the tape hurting your precious photos, quality material decides it can...<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$7.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-13\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B086WTD95C?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2024-04-07 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p><\/div>\n\n\n<p>Look where the contact point is and place the foam here. <strong>Be careful not to make it too thick<\/strong>. This will only make it easier for the wind to lift the flap up.<\/p>\n\n\n\n<p>Unfortunately, these are typically only available in bulk, but they are not too expensive and as a DIY king\/queen, I bet they will be a welcome addition to your supply collection.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><em>Small Weights<\/em><\/h5>\n\n\n\n<p><strong>Find an object that weighs enough to hold the flaps down against wind from the outside but is light enough not to prevent the flaps from opening in response to the pressure of the air exhausted from the bathroom.<\/strong><\/p>\n\n\n\n<p>You will likely need to test a number of objects before you find the correct one.<\/p>\n\n\n\n<p>To test it, temporarily attach the object to the flap and turn the fan on. Wait for the system to get up to full strength and check if the damper is opening properly. Adjust the weight if necessary. <\/p>\n\n\n\n<p>Additionally, you will have to wait until the next windy day to see if the weight is heavy enough to stop the wind from picking the damper flaps up.<\/p>\n\n\n\n<p>A great <strong>option for the weight is a washer held on with a small bead of silicone<\/strong>. Washers come in many sizes, they sit flat against the damper, and they are readily available. You probably already have a good collection to test out at home.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration.jpg\" alt=\"Gravity-operated backdraft damper with washer placed on the flap using a silicone illustration\" class=\"wp-image-32922\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration.jpg 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-300x219.jpg 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-768x560.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-960x700.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-150x109.jpg 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration.jpg.webp\" alt=\"Gravity-operated backdraft damper with washer placed on the flap using a silicone illustration\" class=\"wp-image-32922 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration.jpg.webp 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-300x219.jpg.webp 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-768x560.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-960x700.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration-150x109.jpg.webp 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Gravity-operated-backdraft-damper-with-washer-placed-on-the-flap-using-a-silicone-illustration.jpg\" id=\"mv-trellis-img-14\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<p>Alternatively, you can look at <strong>wheel weights<\/strong>, which come with a waterproof adhesive backing and are easy to use.<\/p>\n\n\n<div class=\"lazyblock-amazonblock-1QHBL1 wp-block-lazyblock-amazonblock\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B06XDHXRT7\" data-aawp-product-id=\"8057\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"CKAuto 1\/4oz 0.25oz Grey Adhesive Stick on Wheel Weights EasyPeel Type Cars Trucks SUVs Motorcycles Low Profile 60oz\/Box U.S OEM Quality  240pcs\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B06XDHXRT7?tag=hvacbuzz-20\" title=\"CKAuto 1\/4oz, 0.25oz, Grey, Adhesive Stick on Wheel Weights, EasyPeel Type. Cars, Trucks, SUVs, Motorcycles, Low Profile, 60oz\/Box, U.S. OEM Quality, (240pcs)\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51lLGZTPbrL.jpg\" alt=\"CKAuto 1\/4oz, 0.25oz, Grey, Adhesive Stick on Wheel Weights, EasyPeel Type. Cars, Trucks, SUVs, Motorcycles, Low Profile, 60oz\/Box, U.S. OEM Quality, (240pcs)\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51lLGZTPbrL.jpg\" alt=\"CKAuto 1\/4oz, 0.25oz, Grey, Adhesive Stick on Wheel Weights, EasyPeel Type. Cars, Trucks, SUVs, Motorcycles, Low Profile, 60oz\/Box, U.S. OEM Quality, (240pcs)\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B06XDHXRT7?tag=hvacbuzz-20\" title=\"CKAuto 1\/4oz, 0.25oz, Grey, Adhesive Stick on Wheel Weights, EasyPeel Type. Cars, Trucks, SUVs, Motorcycles, Low Profile, 60oz\/Box, U.S. OEM Quality, (240pcs)\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            CKAuto 1\/4oz, 0.25oz, Grey, Adhesive Stick on Wheel Weights, EasyPeel Type. Cars, Trucks, SUVs, Motorcycles, Low Profile, 60oz\/Box, U.S. OEM Quality, (240pcs)        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>Superior Quality &ndash; High quality material is garanteed, close tolerance make sure the weight of the products are accurate.<\/li><li>Anti-Corrosion &ndash; The surface layer of the wheel weights is first electrogalvanized, then apply multilayer and omni-dimension plastic spraying process.<\/li><li>Eco-Friendly &ndash; The material of the products is lead-free, universal for 50 states.<\/li><li>U.S White Tape &ndash; U.S made Four-Season Tape makes the perfect sticking results, wide paper backing disigned for easy peeling.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$17.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-15\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B06XDHXRT7?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2024-04-07 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p><\/div>\n\n\n<p>My advice with these is <strong>first test an object with the same weight as the lightest option in the pack<\/strong>. If this is too heavy, there is no point in purchasing the wheel weights.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><em>Cover the Vent<\/em><\/h5>\n\n\n\n<p>You get <strong>hoods for external vents<\/strong>. These are either built into the external vent or fit over it.<\/p>\n\n\n\n<p>They are designed to allow the exhausted air to be pushed out but the <strong>location and angle of the opening<\/strong> make it very difficult for the wind to access the damper flaps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A More Extreme Solution<\/h2>\n\n\n\n<p>The wind is less likely to affect a damper and exhaust system if the fan <a href=\"https:\/\/thetibble.com\/is-it-ok-to-vent-a-bathroom-fan-through-the-soffit\/\" data-type=\"post\" data-id=\"242\">vents through the soffit<\/a> simply because this is a less exposed location. <\/p>\n\n\n\n<p>If there are <a href=\"https:\/\/thetibble.com\/bathroom-fan-venting-roof-or-soffit\/\" data-type=\"post\" data-id=\"22300\">other reasons to move the terminal point<\/a> of the ductwork, you can consider moving it so that it <strong>vents through the soffit<\/strong>. The noise should be eliminated in doing so. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration.jpg\" alt=\"Duct vented through the soffit illustration\" class=\"wp-image-32923\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration.jpg 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-300x219.jpg 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-768x560.jpg 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-960x700.jpg 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-150x109.jpg 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"729\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration.jpg.webp\" alt=\"Duct vented through the soffit illustration\" class=\"wp-image-32923 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration.jpg.webp 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-300x219.jpg.webp 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-768x560.jpg.webp 768w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-960x700.jpg.webp 960w, https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration-150x109.jpg.webp 150w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2023\/05\/Duct-vented-through-the-soffit-illustration.jpg\" id=\"mv-trellis-img-16\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What if it Makes Noise Without Wind?<\/h2>\n\n\n\n<p>There can be a lot of different reasons behind a noisy fan. Since I have previously written an article about <a data-lasso-id=\"359\" href=\"https:\/\/thetibble.com\/why-do-bathroom-fans-get-noisy-troubleshooting-guide\/\">why bathroom fans get noisy<\/a> I won&rsquo;t go into more detail here.<\/p>\n\n\n\n<p class=\"has-central-palette-1-background-color has-background\">I have separate articles where I discuss <a data-lasso-id=\"346\" href=\"https:\/\/thetibble.com\/range-hood-noise-windy\/\">why range hood makes noise when it&rsquo;s windy<\/a> and <a href=\"https:\/\/thetibble.com\/dryer-vent-noisy-windy-solution\/\">why dryer vents make noise when it&rsquo;s windy<\/a>. Most of the information applies to all the systems, but if you are having trouble with a noisy range hood or dryer, head out to the other article since there are some differences.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A strong wind can be noisy enough to drown out the sound of the TV or radio as it is. To add in rattling and banging coming from your bathroom &hellip;<\/p>\n","protected":false},"author":59,"featured_media":32925,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"disable-in-feed":false,"article-schema-type":"","disable-critical-css":false,"footnotes":""},"categories":[16,8,9,7],"tags":[46,20,73,90,89],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why Bathroom Fan Makes Noise When Windy? - The Tibble<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Bathroom Fan Makes Noise When Windy? - The Tibble\" \/>\n<meta property=\"og:description\" content=\"A strong wind can be noisy enough to drown out the sound of the TV or radio as it is. To add in rattling and banging coming from your bathroom &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/\" \/>\n<meta property=\"og:site_name\" content=\"The Tibble\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/thetibble\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-13T12:29:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-05T07:33:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thetibble.com\/wp-content\/uploads\/2020\/06\/28-Why-Bathroom-Fan-Makes-Noise-When-Windy.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"729\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Michael Scott\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michael Scott\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/\"},\"author\":{\"name\":\"Michael Scott\",\"@id\":\"https:\/\/thetibble.com\/#\/schema\/person\/4d6ee0fd1370689dfd9e075a61cb6187\"},\"headline\":\"Why Bathroom Fan Makes Noise When Windy?\",\"datePublished\":\"2020-06-13T12:29:23+00:00\",\"dateModified\":\"2024-01-05T07:33:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/\"},\"wordCount\":2006,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/thetibble.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/thetibble.com\/wp-content\/uploads\/2020\/06\/28-Why-Bathroom-Fan-Makes-Noise-When-Windy.jpg\",\"keywords\":[\"bathroom\",\"bathroom fan\",\"bathroom ventilation\",\"International Residential Code\",\"IRC\"],\"articleSection\":[\"Bathroom\",\"Bathroom Ventilation\",\"HVAC\",\"Ventilation\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/\",\"url\":\"https:\/\/thetibble.com\/bathroom-fan-noise-windy\/\",\"name\":\"Why Bathroom Fan Makes Noise When Windy? 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