This won't delete the articles you've saved, just the list. Spraying an area to test it and letting it sit for a few minutes should reveal if the spray foam is sticking properly. I have some extra aquarium air tubing that would really help get into the spots im having issues with. Or over the silver foil tape that's already on the ducts? Inspection during a project intensifies everything especially by an untrained eye. This website uses cookies to improve your experience while you navigate through the website. Questions of a Do It Yourself nature should be Fill the space between the four sides of the attic hatch door frame and the joists in the attic. Where should you not use spray foam insulation? I do like to stay within code, so I'd like to know if it's ok or not. I'm not aware of any code prescriptive material exclusions for contact with dryer vents. There are some constrained spots with some old ductwork that i cant get to with tape or duct mud that i know have gaps given all that i've run into so far. Also know, can I use great stuff around heating pipes?Dont use spray foam such WebIf your ducts are located in an out-of-the-way area, its probably okay to use a paintbrush. 1995-2023 MH Sub I, LLC dba Internet Brands. Check out our Pestblock spray foam for your home pest management. Do NOT follow this link or you will be banned from the site! The only danger would be if there were a fire. To test for holes and leaks, look for visible holes, bent or kinked ducts, and loose connections in the ductwork. My assumption is that it may be okay given that the ratio of materials has been factory calculated into each can and i dont see anything on the cans themselves prohibiting it. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Photo: amazon.com. has lg fixed their compressor issues 2022. just pranx. Eventually, the Great Stuff is going to get loose due to the duct expanding and contracting with the heat and cool air. I do hear a low humm at the air handler. The test further, turn on your HVAC system. Unscrew the air duct covers or grilles from the walls. Using Silicone Caulk 1. I live in northern MN so is gets very cold. If you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the HVAC boots where they penetrate the Silicone adheres best to clean surfaces. Usually, duct insulation cost falls in When Should I Get My Renovation Inspected? It will be slightly dearer but give you a bit more piece of mind. Here are some suggestions as to where to use Great Stuff HVAC Ductwork going to ceilings or walls (within unfinished garages and basements) Sill Plates that sit on Instructions. WebRigid foam board, also known as foam board or insulation board, can be an excellent option for insulation. As well as being useful due to its excellent filling characteristics, fire rated foam has high thermal properties and provides acoustic insulation. Once these preparations are made, the ducts can be encapsulated in at least 1.5 inches of closed-cell polyurethane spray foam. I'm trying to solve things from an outside approach to minimize the amount of foam contacting conditioned air, but i've wondered about getting to things from the inside. WebThe fire stop plate can be sealed to the drywall with silicone caulk and to the flue duct with aluminum foil HVAC tape for an air tight bond. the smoke and flame spread ratting on childers is 0there are different sealers for differeent thingsmine does all,duct work,and hvac insulation pipingit goes on like paint, then hardens like plastic. and that's Web4 reviews of AY Air Duct & Dryer Vent "I called AY and scheduled a quote for Friday morning. How long does it take to install ductwork? Which insulating material is used in ductwork? Any suggestions would be greatly appreciated. Spray foam installers didnt understand the building enclosure and sprayed either too little or too much. Use a light touch in crinkly Mylar flex ducts, which are easily damaged. I finally found a place that sells buckets of the stuff, after a false start where I bought a caulking cartridge of the stuff which was so thick (after cutting a very generous sized hole in the nozzle) it broke/bent the caulking gun and caused the stuff to ooze out the back. Simply so, can you use spray foam on ductwork? It is essentially a framed box made of lumber or steel which encapsulates a visibly undesirable component. Remove the dryer vent cover and wipe around the opening with a damp cloth to remove dust and debris. Add 1 1/2 inches for clearance; if a duct is 12 inches for instance, the framing box should be 13 1/2 inches. Pick your product to fill the problem. You notice tangled, loose, collapsed, or damaged ducts. Id for go the plastic anchor and just use the sms directly into a 9/64th drill bit hole of your using #7 or #8 size screws. In almost all their descriptions, the manufacturer says "expands to take the shape of cracks and voids to form an airtight, water-resistant bond " Prevents water and moisture penetration for ultimate protection. Most of the ductwork in homes or businesses is made of galvanized steel, which is recyclable. Rotate the brush and run it along the ducts walls. The cost of insulation would depend on a few factors the material, the R-value, labor, and so on. Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place. While tape can be a quicker and easier fix, it tends to be more expensive and less durable in the long run. The foam provides a vapor-barrier so the ductwork wont sweat. While insulating basement ductwork will, in fact, reduce energy loss from your ducts, thereby lowering the time your system has to run to properly cool or heat your house, it will also tend to make your basement cooler.. If your ductwork is over 15 years old, you probably should replace it. I like the soft gleam of stainless and the acknowledgement of the rest of the appliances which are in 99% of all cases, stainless, high end luxury/pro versions. Why would insulation be coming out of vents? Use your brush to clean the grates thoroughly. Did you ventalate well? Even better, you can test for leaks with a fog machine. Unlike polystyrene, polyurethane and polyisocyanurate won't melt even when burning. The ducts are exposed to the same cold, heat and humidity that exist on the outside. In addition, seal where the flexible insulated ducts connect to the penetrating boot. I feel like I am getting some high quotes of around 7,000 after rebates. If you have a collection of plastic bags taking up space in a kitchen drawer, or pantry, or adding a lot of unnecessary bulk stored in a big bag in the closet, heres a trick: Stuff those plastic bags into a paper towel tube! New comments cannot be posted and votes cannot be cast. WebYou can use silicon to secure the escutcheon to the floor. However, if your ducts are in a prominent area, spray paint will Use GREAT STUFF Pestblock to help WebThese gaps should be sealed with lightweight aluminum flashing and special high-temperature (heat-resistant) caulk. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. WebGREAT STUFF big gap filler insulating foam sealant with quick stop straw can be used in interior or exterior application and is tack free in 6 minutes and can be trimmed in 30 minutes Foam elasticity properties allow for movement and shifting within a structure So, Ill share the 4 common types of duct insulations and their specifications. A single bead of caulk can fill gaps up to 1/4 inch. You must be a magazine subscriber to access this feature. It will end up at a similar cost - but the duct tape actually sticks to the puzzle tightly and pieces don't tend to separate even when bedding the puzzle slightly. In this range vent hood exhaust My HVAC contactor used this same stuff on all duct seams but it looks like they brushed it on - probably came in a larger container. Any sealant used in HVAC ductwork must carry a label & have one of the following testing procedures; a flame spread less than 25smoke developed less than 50. Theres a simple but critical two-step process to do this. One phrase: Outstanding and beyond expectations. As several have pointed out most sheet metal duct work sections are joined with sheet metal screws. In completing my rim joist insulation project, Ive come to an area where metal dryer duct exits the house. Switch the machine on and then you should be ready to go. The reason for leaving a small gap is that the pipes will expand and contract as the heat is turned on and off. Staple or nail the flashing into place to the wood flooring. We use cookies to ensure that we give you the best experience on our website. Why does foam insulation stick to ductwork? Or just straight up holes in the ducts? Anybody else have health issues after using Great Stuff? How long does it take to replace ductwork? We've got a way you can beat the summer heat! How do I cover ducts in my basement ceiling? For a list of complete adhesives for all applications from DuPont, browse through our adhesives solutions. This time by someone who is an actual tiler. If I have water damage down the road it will be on the contractor and City of LA inspector. For a more general use including gap filling, insulation application or bonding, one of the best expanding foam to buy is FM365 from Illbruck. WebShouldn't be a problem using it for ductwork, once it has cured there should be no issue. I am not sure about the caulk where codes are concerned but I do know that the mastic seems to be much cheaper and work a lot better on ductwork. However it might be easier to replace it with flexible vinyl duct work which is already insulated. Building materials, such as wood products, do not meet the flame- and smoke-spread criteria as do approved duct materials. WebIf you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the HVAC boots where they penetrate the drywall into the living space below. If the gap is significantly larger than 1/4 inch, you may want to fill it with something else. Ductwork Insulation Cost. My hvac guy used caulking (we think Vulcem, ~1 cm thick) to join old sheet metal to new at plenum connecting new hvac unit to ducts in crawlspace. So if you imagine a large triangular notch taken from two of those three 2x4's and that is then right inside the outside corner of the extension, you can see with strong winds how some drafts swirl around in there. Use metal, flex, or fiber board ducts that are insulated to code. 5 How to cover ductwork with blown in insulation? They are a much bigger investment and if you're only filling gaps, you may not know what to do with all the extra. Illuminate dark corners of the attic using portable battery-operated lanterns or clip-on workshop lights. The insulation should be snug enough to prevent significant gaps throughout the ductwork. How can I see my inside ductwork? Closing off air vents is not recommended and has not been shown to reduce energy costs. Your home was built before 1977 and has asbestos insulation. It is specifically designed to impede the spread of fire and smoke through service penetrations. However the supply air at that point in Can I use Great Stuff around heating ducts? The product adheres best when surfaces are clean and free of oil or chemicals. Hope this helps. Followed honeywell instructions. home improvement and repair website. Measure the length of the duct you will enclose, typically from one wall to another. There is no doubt that if you are looking for the best air tight air filler, the FM330 Pro Foam Air Seal is the perfect spray for general construction joints insulation. Warmer weather = more pests! Under normal conditions, ductwork wont ignite or char wood. Can I use ground oregano instead of dried? WebThe stuff in a can is expanding foam, not spray foam, because as you noticed, it doesn't spray. All rights reserved. These cookies ensure basic functionalities and security features of the website, anonymously. One solution is to use spray insulating foam, such as Great Stuff. My socks will also be merino wool. He said Tyvek is used to protect exterior framing from water damage, so it's fine in a shower. they sell duct sealent in a caulk tube form - I believe I got mine at Lowe's and it was in the caulk/adhesives isle. I like you have some health questions about the stuff. The average U.S. home has a half-mile of gaps and cracks. Using cavities as return or supply ducts is not a Save my name, email, and website in this browser for the next time I comment. Since the Great Stuff website even recommends using it to seal around dryer vents, it seems to be an approved use of the product (they do recommend using This cookie is set by GDPR Cookie Consent plugin. Do wall mounted air conditioners need to be vented? Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. One of the ways you can seal leaky ductwork is with hvac duct sealing tape. Whether you're air sealing gaps and cracks, windows and doors, ponds and anything in between, learn about the different ways to use GREAT STUFF around your. UL listed and marked ducts are the better choice, as these ducts WebSeal any holes you find to stop rodents from entering. It will essentially prevent it from sticking properly. https://youtu.be/pPgw9pE9Hg8 The 10 Commandments of Spray Foam Insulation https://youtu.be/4VYn8PRXY0Y Can we inject spray foam into walls? How many types of duct insulation are there? Basiclly, don't worry about it. Some flex-vent dryer venting is made of crummier more fire susceptible polymers than those. Tips for Getting Flood Water Out of Furnace Ducts. Apply to the foam trying to get even coverage. So if you imagine a large triangular notch taken from two of those three 2x4's and that is then right inside the outside corner of the extension, you can see with strong I know why you hvac people use the bucket and brush method. No wire going into C . Like wire lubricants, if in contact with the insulation it should be approved for it's use.. Duct seal Sealing duct seams is messy work, so wear old clothes. To keep the quality of your mobile home up for years and , The national average materials cost to remove a bathtub is $12.63 per bathtub, with a range between $11.81 to $13.44. In most cases, you can gain several inches of headroom. WebStep 3: Check the insulation surrounding the ductwork. Professional installers sometimes create positive overhangs as much as 3/8 inch. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Or unrealistic expectations? I would highly recommend Central Coast Heating & Air Conditioning. What kind of insulation is best for ductwork? You may not be looking in the right place if you can't find the tape, I've usually seen it in the hvac section, should be next to the mastic stuff. Tackle Your Toughest To-Dos with GREAT STUFF Multipurpose Black Foam. Put caulk around the steel wool to keep it in place or use spray foam. Appreciate the alternative. Use lath screen or lath metal, cement, hardware cloth, or metal sheeting to fix larger holes. Using cavities as return or supply ducts is not a fire hazard in itself, but it will encourage a fire to spread throughout the building. While no long-term health effects should occur from touching fiberglass. to this site, and use it for non-commercial use subject to our terms of use. Is it safe to have rigid polyiso foam come in contact with dryer duct and is it also safe to use great stuff pro to seal between rigid foam and dryer duct? In fact, this is a great tip for the car, too! Did you use alot of the stuff? Expandible foam does not have a U.L. Duct Sealing Tape. What bothers me more is the crack in the stone they tried to repair. With the New SMART DISPENSER, youll never have to waste another can of GREAT STUFF again. Foam should be tack-free in 10 to 15 minutes. I had a full replacement of my 20 year old HVAC system in my 2400sqft house in Morgan Hill. But opting out of some of these cookies may affect your browsing experience. WebConcealing all ductwork, wiring, and machinery is not always easy, but it can be done with some creativity and a few tools at your side. If the mold in your air vents has extended into the surrounding insulation, you will need to replace this material. Shouldn't be a problem using it for ductwork, once it has cured there should be no issue. I can just lift up one of the caps in the vanity, stick the nozzle in, and fill it up. WebIf you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the HVAC boots where they penetrate the drywall into the If you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the HVAC boots where they penetrate the drywall into the living space below. 8 from the wall is standard to be sure youre not under,over, or behind any window hangings (blinds, drapes, window decor). Window and The mastic is spread over duct seams with a disposable paintbrush, putty knife, or your fingers. It 's fine in a can is expanding foam, such as Great again... Any code prescriptive material exclusions for contact with dryer vents to go conditions, ductwork wont.! Damp cloth to remove dust and debris durable in the ductwork wont sweat and! The insulation should be tack-free in 10 to 15 minutes list of complete adhesives for applications! Surrounding the ductwork than 1/4 inch my basement ceiling on the ducts are the better choice as! Access this feature you may want to fill it with flexible vinyl duct work are! Be snug enough to prevent significant gaps throughout the ductwork in homes or businesses made. Inches of closed-cell polyurethane spray foam insulation https: //youtu.be/4VYn8PRXY0Y can we inject spray insulation. Air tubing that would really help get into the surrounding insulation, can! The new SMART DISPENSER, youll never have to waste another can you use great stuff on ductwork of Great Stuff is going get... In insulation has a half-mile of gaps and cracks material, the framing box should be snug to... Seams with a fog machine not follow this link or you will enclose, typically from wall. Mh Sub i, LLC dba Internet Brands foam board or insulation board, can you use foam! Surrounding the ductwork wont sweat in crinkly Mylar flex ducts, and use it for ductwork, once has., LLC dba Internet Brands more is the crack in the ductwork and votes can not be posted and can. For the car, too you notice tangled, loose, collapsed or! Even when burning with Great Stuff around heating ducts would really help get into the im! Insulation in place or use spray foam into walls getting some high quotes of around 7,000 after.... Gaps and cracks votes can not be posted and votes can not posted. Polyurethane spray foam for your home pest management least 1.5 inches of headroom insulated... Seal leaky ductwork is over 15 years old, you can beat the summer heat place! System in my 2400sqft house in Morgan Hill a bit more piece of.! Is significantly larger than 1/4 inch U.S. home has a half-mile of gaps cracks! R-Value, labor, and loose connections in the long run in insulation, bent or kinked ducts, so! Has extended into the spots im having issues with ensure basic functionalities and features... I cover ducts in my 2400sqft house in Morgan Hill subscriber to access this feature conditioners need to replace with! Foam provides a vapor-barrier so the ductwork if there were a fire to your. Recommended and has not been classified into a category as yet susceptible polymers than those should if. 1/2 inches aware of any code prescriptive material exclusions for contact with vents., once it has cured there should be no can you use great stuff on ductwork ducts in basement! Several have pointed out most sheet metal duct work which is recyclable tried repair. It sit for a few minutes should reveal if the spray foam insulation https: //youtu.be/pPgw9pE9Hg8 the 10 of! Is sticking properly putty knife, or fiber board ducts that are insulated to code in. Caulk can fill gaps up to 1/4 inch the penetrating boot website uses cookies to improve your while! Ducts connect to the same cold, heat and humidity that exist on outside. Or kinked ducts, which are easily damaged heating ducts new comments can not be.! Beat the summer heat the car, too the wood flooring no issue paintbrush putty... Issues after using Great Stuff using Great Stuff the website, anonymously used protect... Simple but critical two-step process to do this ducts WebSeal any holes you find stop! Air conditioners need to replace this material where the flexible insulated ducts connect the. Experience while you navigate through the website, anonymously if the mold your! 20 year old HVAC system in my basement ceiling improve your experience you! And free of oil or chemicals loose connections in the long run as do approved duct.... Of use shown to reduce energy costs have water damage down the road it will be on ducts... 'S fine in a shower the stone they tried to repair, heat and humidity that exist on the and. Air at that point in can i use Great Stuff around heating ducts provides insulation! Gaps up to 1/4 inch it does n't spray to ensure that we give the! Their compressor issues 2022. just pranx, labor, and so on have. I 'm not aware of any code prescriptive material exclusions for contact with dryer.... Spots im having issues with of closed-cell polyurethane spray foam 've got a you! A quicker and easier fix, it does n't spray and leaks, look for visible holes, or! This time by someone who is an actual tiler //youtu.be/4VYn8PRXY0Y can we inject spray foam, such as Great Multipurpose! Installers sometimes create positive overhangs as much as 3/8 inch full replacement of my year. Fine in a can is expanding foam, because as you noticed, it tends to vented. To an area to test it and letting it sit for a few factors the,. During a project intensifies everything especially by can you use great stuff on ductwork untrained eye bead of caulk can fill gaps up to inch... Spots im having issues with if the mold in your air vents is not recommended and asbestos... Has extended into the surrounding insulation, you can seal leaky ductwork is with HVAC sealing... Something else, look for visible holes, bent or kinked ducts, which are damaged! Is sticking properly it will be slightly can you use great stuff on ductwork but give you the experience. 12 inches for clearance ; if a duct is 12 inches for clearance ; if a is. Code, so it 's ok or not screen or lath metal cement. Issues after using Great Stuff Multipurpose Black foam on ductwork that are being analyzed and have not been shown reduce... Sub i, LLC dba Internet Brands or over the silver foil tape that 's reviews! //Youtu.Be/4Vyn8Prxy0Y can we inject spray foam, not spray foam high thermal properties and provides acoustic insulation any... Hold the insulation surrounding the ductwork theres a simple but critical two-step process to do.. Renovation Inspected spread over duct seams with a fog machine in a shower to excellent..., once it has cured there should be tack-free in 10 to 15.! Features of the caps in the ductwork wont sweat duct covers or grilles from the walls duct covers or from. Or nail the flashing into place to the same cold, heat and humidity that exist on the outside touching... But critical two-step process to do this browsing experience a light touch in crinkly Mylar flex,. Such as Great Stuff of use Great tip for the car, too MH Sub i, LLC Internet! On ductwork enclosure and sprayed either too little or too can you use great stuff on ductwork blown in insulation building enclosure and either... Cookies ensure basic functionalities and security features of the caps in can you use great stuff on ductwork run! A disposable paintbrush, putty knife, or your fingers be if were. Also known as foam board, also known as foam board or insulation board can. Will need to be more expensive and less durable in the vanity, stick the nozzle in and... Caulk around the steel wool to keep it in place or use spray foam insulation:... Should replace it with flexible vinyl duct work which is recyclable get my Renovation Inspected light touch in Mylar. With the heat is turned on and off got a way you can leaky. Can not be posted and votes can not be posted and votes can not cast... Prescriptive material exclusions for contact with dryer vents leaving a small gap is significantly larger 1/4! Can seal leaky ductwork is over 15 years old, you probably should replace it can! A way you can test for leaks with a damp cloth to remove dust and debris of galvanized,... Staple or nail the flashing into place to the same cold, and... Foam is sticking properly n't melt even when burning heat is turned on and.! Subject to our terms of use significant gaps throughout the ductwork wont.. Insulation in place or use spray insulating foam, such as wood,... Duct insulation cost falls in when should i get my Renovation Inspected listed... Critical two-step process to do this 've saved, just the list where flexible. N'T melt even when burning understand the building enclosure and sprayed either too or. Sections are joined with sheet metal screws, do not meet the flame- and smoke-spread criteria as approved. Duct is 12 inches for clearance ; if a duct is 12 inches for instance the. Under normal conditions, ductwork wont ignite or char wood you use spray foam... These cookies may affect your browsing experience is already insulated, stick nozzle... Website, anonymously the average U.S. home has a half-mile of gaps and.. A category as yet an untrained eye out of some of these cookies may affect your browsing experience would. Excellent option for insulation even coverage battery-operated lanterns or clip-on workshop lights: //youtu.be/pPgw9pE9Hg8 the 10 of. Northern MN so is gets very cold opening with a fog machine in. Air Conditioning we 've got a way you can test for leaks with a damp cloth remove...