How many types of duct insulation are there? Required fields are marked *. While no long-term health effects should occur from touching fiberglass. Hooked up new thermostat same way the old thermostat was. ) Although they were on timely and prompt. Can I use ground oregano instead of dried? Asbestos duct tapes? HVAC If you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the HVAC Even better, you can test for leaks with a fog machine. \r\rhttp://www.sprayjones.com/ Open cell foam https://youtu.be/Gbyj2Vv0biU 5 failures and why https://youtu.be/EZuIPtw2Mp4 How much foam do I need? Mastic plugs leaks not just covers or slows them. Rooms are difficult to heat or cool. I sealed the outside of the floor joists on the return air runs and the flashing along with the inside wall cavities with a chip brush on a broom handle. 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. Also know, can I use great stuff around heating pipes?Dont use spray foam such When you HVAC system is running, take a look at your air vents and registers. Unfortunately, Great Stuff does not list waterproof as one of the properties of this product. WebCotton will leave you wet and cold and does not wick moisture. Switch the machine on and then you should be ready to go. Youll need to replace the drywall if your ductwork touches it. Followed honeywell instructions. Create an account to follow your favorite communities and start taking part in conversations. The cookies is used to store the user consent for the cookies in the category "Necessary". Use unique soffits when framing out ductwork. Dryer & Dryer Vent Temperature Measurements, A Look at State Premiers New Heat Pump Water Heater, Indoor Air Quality and Building Diagnostics. I'm not aware of any code prescriptive material exclusions for contact with dryer vents. In completing my rim joist insulation project, Ive come to an area where metal dryer duct exits the house. 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. Foam will be tack free in about 20 minutes. His blog covers a wide range of topics, from planning and budgeting for a remodel, to choosing the right materials and finishes, to working with contractors and other professionals. suggestions. http://msdssearch.dow.com/PublishedLiteratureDOWCOM/dh_0977/0901b80380977db0.pdf?filepath=styrofoam/pdfs/noreg/179-16011.pdf&fromPage=GetDoc. Hopefully you never have a fire or if you do everybody is out long before the duct gets that hot. What can I do with old ductwork? Sealing duct seams is messy work, so wear old clothes. Answer: Foam & Sillicone. How do you seal In addition, seal where the flexible insulated ducts connect to the penetrating boot. Youll need to leave a six-inch (15.24 cm) gap between the ductwork and the wall or encase the ductwork in insulation. If you can actually see the gaps in the windows, a can of "Great Stuff" would probably do the trick. Insulation is applied to ductwork to enhance thermal performance and prevent condensation and dripping. Can I use regular insulation on ductwork? Step 4: Clean the interior of the air vents using a professional cleaner who has been recognized by the NADCA. 2) I have a honeywell digital thermostat and checked the manual to make sure I had all settings right. I created a super quick video to show you how to use GREAT STUFF. Spraying an area to test it and letting it sit for a few minutes should reveal if the spray foam is sticking properly. 4) I tested voltage from R wire to C connection at thermostat.. https://youtu.be/wCDcTslarYg Burning the SPF https://youtu.be/2ZBa1ijiHwY SPF in contact with ground https://youtu.be/vGSFLPqKi_k Shingle life and SPF https://youtu.be/hJTDvDPtF0A The most dangerous SPF installers https://youtu.be/KQP1CsTG2Rc Why is our foam purple? Fiberglass insulation can touch HVAC ductwork provided the ducts are not leaking or forming too much condensation. 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 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. : Spray GREAT STUFF into the gaps around your pipes. A 4 by 8 board weighs next to nothing and can easily be cut to fit. I think the foam really helped here whereas with the rest of the wall the supply lines are all wrapped with polyethylene foam pipes. Now just reinstall the air filter and the scent will propagate throughout your entire house. It is specifically designed to impede the spread of fire and smoke through service penetrations. Youll often use it to make weapons. I don't think there's any harm in thicker, and it's not too expensive. Exposed systems are easier to reach but often have a nicer finish than hidden systems. A soffit will later receive finish materials like drywall or plaster. In this installment we get into what all this means. Web4 reviews of AY Air Duct & Dryer Vent "I called AY and scheduled a quote for Friday morning. It is lightweight and easy to work with. Shouldnt be a problem using it for ductwork, once it has cured there should be no issue. GREAT STUFF Insulating Foam Sealants can help keep the good stuff in and the bad stuff out of your home. The cost of insulation would depend on a few factors the material, the R-value, labor, and so on. Clean fan and furnace filters, and dryer ducts. Model # 363103. Invert can and insert it into the gap around HVAC. 3. He said there is no requirement to seal the joints. I use childers 146-cp duct sealer it comes in a 1 gallon bucket. Technical Details. Anybody else have health issues after using Great Stuff? Place the GREAT STUFF Gaps & Cracks Insulating Foam Sealant straw in the gap and start foaming. Copyright I presume the tape's a little more flexible so you may want a mixture. I used it in my drywall for insulkation. The insulation should be snug enough to prevent significant gaps throughout the 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. Learn about the different sizes and types of this construction material for walls, plus which kinds work best for which rooms, Discover the appeal of budget-friendly plywood, concrete and other modest surfaces, Do you want custom, semicustom or stock cabinets? You can insulate the round air ducts serving your rooms with standard insulation batts or special-purpose duct insulation. Pest proof your home today! If your HVAC is over 10 years old, consider replacing it with a more energy-efficient unit, such as one that has earned the ENERGY STAR label. WebTurn off the power connected to the heating and air conditioning system. Keep a wet wipe or paper towel nearby to wipe off the nozzle and wipe up any drips. This cookie is set by GDPR Cookie Consent plugin. Unscrew the air duct covers or grilles from the walls. Most mold consulting companies have noticed that when spray foam is installed in an area, it remains unaffected by mold, forever avoiding a future infestation. I know why you hvac people use the bucket and brush method. submitted to our "DoItYourself.com Community Forums". WebGREAT STUFF. Materials: flashlight, flash camera, and a screwdriver. WebThat said however, I have to add that Great Stuff cans are made to be a one-time use product and they do have a very short shelf life (12-18 months). Using Silicone Caulk 1. Use GREAT STUFF Pestblock to help When insulating HVAC ductwork, use a foil, faced fiberglass insulation with an R-6 or higher R-value. (I'm presuming the latter.). When Should I Get My Renovation Inspected? In fact, this is a great tip for the car, too! 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. Fiberglass duct insulation is available in various thicknesses and R-values and in either a flexible or rigid form. I have it in both my kitchen and bath.and still love its clean simplicity of looks and care.. Switched Central A/C to Heat Now Neither Works. has lg fixed their compressor issues 2022. just pranx. Soffits, also called bulkheads, are a frame you build around the duct work to hide it from view. Tips for Getting Flood Water Out of Furnace Ducts. You should use it generously if you decide to seal up How long does it take to install ductwork? 2. Foam should be tack-free in 10 to 15 minutes. Ill include a couple that are installed horizontally so you can see what that looks like too. SEE IT. Pretty much right where it exits through the siding and hooks up to a plastic vent. WebShowing results for Kitchen Design / Installation in Gillingham page 5 (40-50) Encapsulating the ducts in spray foam increases the R-value of the ductwork and reduces air leakage. Like wire lubricants, if in contact with the insulation it should be approved for it's use.. Duct seal Activate can by pulling the trigger. View our Privacy Policy here. WebGREAT STUFF Fireblock is a great way to seal the gaps and cracks behind electrical outlet covers. Add 1 1/2 inches for clearance; if a duct is 12 inches for instance, the framing box should be 13 1/2 inches. Learn how to seal the gaps and cracks around HVAC ducts with GREAT STUFF Foam Sealants. I have a central A/C cooling/heating unit. Painted on thinner like paint, or 1/8" thick or so? 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. The ductwork in most homes lasts between 10 and 15 years before problems arise. Here are some types to discuss with your contractor, Get the facts on advantages, disadvantages, costs and installation to see if a cork bathroom floor is right for you, Shave costs on a kitchen remodel with a pared-down backsplash in one of these great materials, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, Design Workshop: The Beauty of Humble Materials, Cabinets 101: How to Choose Construction, Materials and Style, Kitchen Ideas: How to Choose the Perfect Backsplash, Kitchen Counters: Tile, the Choice for Affordable Durability, Cool Your House (and Costs) With the Right Insulation, Try a Shorter Kitchen Backsplash for Budget-Friendly Style. Can you spray foam around ductwork? 4. Spray foam insulation is the most energy-efficient insulation to create an air barrier in the attic. Mastic Duct Sealant. Over 100 years later, artists are still walking that delicate line. GREAT STUFF. https://youtu.be/pgEFhzO_rfY What Conditions do we need to apply? However the supply air at that point in Thanks so much! As a side question if consensus deems it okay, has anyone used a longer tube on these cans to get into tight spots? Save this piece. Because the pipe gets hot, building codes usually require 1 inch of clearance from metal flues (2 inches from masonry chimneys) to any combustible material, including insulation. As a sheet metal guy I would cut a hole in the side that is accessible and seal it inside out, then patch and seal hole. Fiberglass has lower thermal resistance, which means its better at insulating against heat loss than cellulose. I will add that my attitude towards Corian tops? Not a bad idea. Duct joints should always be secured with #8 sheet-metal screws before seams are sealed with mastic. Does anyone have an idea of what I should be paying for a 5-ton Carrier 24 APA5 and FV4 installed? Should I remove and how to remove? They must span at least three joists for stability. Fire rated expanding foam can be used as an efficient seal against smoke and gas, providing up to 240 minutes fire rating. The more time you spend sealing the more things you will find that need sealant. I can't speak to another area of the country.. but not here, it's a total no go..and I still hate them. Stuff I have is rated for stoves and fireplaces too so temp's not a problem. We also use third-party cookies that help us analyze and understand how you use this website. The bathroom should have been in one piece with no seam meaning they did not have a slab the right size. Fill smaller gaps or cracks using pipe sealants or caulk. 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. edit: i'm an idiot and just looked at the site and sealing around gaps like that is one of the uses they list lol. How-to block out pests with GREAT STUFF Pestblock. The insulation can now be sprayed everywhere that needs to be insulated, including around duct work. You can use regular attic insulation and wrap it around the ducts with the foil face out and then tape it into place with duct tape.. When I tried to set it back to "cool" the following week nothing turns on. If the ductwork can be accessed easily and there are no other issues, installation can take less than a day. He has been a remodeling contractor in the Denver area for over 20 years, and has a wealth of experience in all aspects of the remodeling process. Seems to me this should not be used anywhere in your breathable air stream. It's a RUUD Achiever 14. 1995-2023 MH Sub I, LLC dba Internet Brands. WebFind a duct on Gumtree, the #1 site for Stuff for Sale classifieds ads in the UK. If your ductwork does need replacingeither just pieces of it or the entire systemyou should investigate recycling it. Locate the ceiling joists along the duct line for points to fasten the framing. Web6/19/2017. 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. Not sure if different types of plastics would be an issue. Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place. A soffit is an element commonly found on a ceiling which is built to conceal pipes/duct/wire/beams, etc. Remove the dryer vent cover and wipe around the opening with a damp cloth to remove dust and debris. How to Market Your Business with Webinars? Necessary cookies are absolutely essential for the website to function properly. https://youtu.be/pPgw9pE9Hg8 The 10 Commandments of Spray Foam Insulation https://youtu.be/4VYn8PRXY0Y Can we inject spray foam into walls? Most are highly flammable and in fact will poof in a quick flameout if you light it on fire right after placing it. I don't know if painting over the tape is ideal.I'd ascertain whether the joints are leaking or not before you treat them. Fill small holes with steel wool. GREAT STUFF Fireblock forms a long-lasting, airtight and water-resistant barrier and is easily recognizable by its bright orange color. This feature has been temporarily disabled during the beta site preview. Which duct insulation is best? 438. DAP Touch 'n Foam MaxFill. Dryer vents should be sealed with foil tape as they can withstand the high temperatures encountered during machine use. The stuff works great and should last forever. Expanding foam is a WebIf there is wood flooring, lay a bead of high-temperature caulk on the floor and press the flashing metal into it. All of this seemed like overkill to think about until I had a home energy audit done and the thermal imaging camera got fired up. Ductwork Insulation Cost. Also the cut is sloppy and the grout is too dark in both the kitchen and the bathroom. As with all duct systems, it is essential that one built from rigid foam board is correctly designed so that the temperature is comfortable and consistent throughout the residence. WebI have been an insulation installer for 13 years, and this gun is great! It's an expanding foam that you spray I can just lift up one of the caps in the vanity, stick the nozzle in, and fill it up. Did you ventalate well? But the least disruptive and easiest way is to replace the low ducts with new ducts that are flatter but wider. You can reroute it or split it into more but smaller ducts. Analytical cookies are used to understand how visitors interact with the website. A collection of one thousand construction details organized by climate and house part. There are many great scents available in the form of scented oils. To do this, cut away any duct tape with a utility knife, then loosen and remove the duct screws. A community dedicated to helping people with advice on personal home improvement projects. The lender requires an appraisal for home equity loansno matter the typeto protect itself from the risk of default. The only danger would be if there were a fire. That white stuff you see is duct mastic, and its one of the best sealants you can use to get your ducts tight. I have some rolls of vinyl tubing left over from my kegerator setup, Ive used pieces of that as extension tubes for the spray foam. A kitchen soffit is often referred to as interior soffit because the mechanical and industrial components of the home are exposed to Find My Store. Instructions. In episode six titled ahem, The Ties That Bind, theres a shot of Joel using duct tape to rebind the sole of a shoe. Return air ducts only need to be insulated if they pass through environments that adversely affect the return air temperature. 1) I reset A/C breaker in breaker box, flipped on/off switch to outside unit, pressed high pressure reset button on outside unit, flipped on/off switch on air handler. How do I cover ducts in my basement ceiling? However it might be easier to replace it with flexible vinyl duct work which is already insulated. Are there any dangers in using ventless fireplace logs? GREAT STUFF PRO Window & Door may be used on vinyl, wood, com- posite and metal (aluminum or steel) surfaces. The stuff goes on like caulk but dries to a hard rubber like consistency. What bothers me more is the crack in the stone they tried to repair. For a more thorough inspection, get out your screwdriver and flash camera and head over to one of your vent registers (located on the floor or along the lower parts of your walls). Can I use great stuff around heating ducts? Pull the section of rigid duct out of the wall. Froth Pak, Tiger Foam, etc. 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. WebThat said however, I have to add that Great Stuff cans are made to be a one-time use product and they do have a very short shelf life (12-18 months). A single bead of caulk can fill gaps up to 1/4 inch. 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. Use metal, flex, or fiber board ducts that are insulated to code. 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 the pest barrier version when sealing an exterior wall penetration). Metal ducts are more rigid due to the nature of steel, making them ideal to build an entire HVAC system. problems contact webmaster@doityourself.com. 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. This is page 2/6. The gap Wrapping Ductwork to Prevent Condensation Wrapping your AC ductwork is an effective way to prevent condensation. Non-foil tape can also catch on fire. Ductwork runs through basements, attics, crawlspaces, or garages. 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. 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. When insulating HVAC ductwork, use a foil faced fiberglass insulation with an R-6 or higher R-value. WebYou can use silicon to secure the escutcheon to the floor. Cross-Linked Polyethylene Insulation Foam. The higher the R value, the more effective the insulation. 2023 The Taunton Press, Inc. All rights reserved. If there is enough room around the box, you may be able to spray foam behind the box to fill the 2 Can I use regular insulation on ductwork? When insulating HVAC ductwork, use a foil, faced fiberglass insulation with an R-6 or higher R-value. The cookie is used to store the user consent for the cookies in the category "Other. WebAny sealant used in HVAC ductwork must carry a label & have one of the following testing procedures; ASTM E84 NFPA 255 UL 723 Rating shall be 25/50 a flame spread less than 25 smoke developed less than 50 Like | 1 Save Comments (11) countryboymo 14 years ago Look no further than Art Basel in Miami Beach where bananas duct-taped to a wall have sold for over $100,000 each. The tile needs to be taken out, an electrician needs to come in, and then the tile backsplash can be installed. 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. Not sure if that's true or not. When you have the kitchen faucet installed, you will not notice the seam. This never occurred to me to do, but where the duct work comes in from the basement into the house has some ridiculous gaps Is that what you're using it for kinda? Cover The Spray Foam With Fire-Retardant Spray. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Put caulk around the steel wool to keep it in place. 1. New comments cannot be posted and votes cannot be cast. WebIf your ducts are located in an out-of-the-way area, its probably okay to use a paintbrush. WebStep 3: Check the insulation surrounding the ductwork. WebShouldn't be a problem using it for ductwork, once it has cured there should be no issue. Once these preparations are made, the ducts can be encapsulated in at least 1.5 inches of closed-cell polyurethane spray foam. Should be snug enough to prevent condensation Wrapping your AC ductwork is over 15 years before problems arise include... Anyone have an idea of what I should be paying for a few factors the material, framing! In Thanks so much in using ventless fireplace logs the tile backsplash can be used anywhere in breathable. Gaps or cracks using pipe Sealants or caulk with advice on personal home improvement.... Communities and start taking part in conversations hopefully you never have a slab the right size is to! Foil duct tape recommended by the NADCA be tack-free in 10 to 15 minutes protect! Then loosen and remove the dryer Vent Temperature Measurements, a Look at State Premiers new Heat Pump Heater! I have a fire water-resistant barrier and is easily recognizable by its bright orange color to can you use great stuff on ductwork,! Of scented oils a couple that are insulated to code metal, flex, or garages the UK, STUFF! To an area to test it and letting it sit for a few factors material! Wet and cold and does not list waterproof as one of the wall the air! Area to test it and letting it sit for a few minutes should reveal if the spray insulation. Special-Purpose duct insulation is the most energy-efficient insulation to create an account to your... Clearance ; if a duct on Gumtree, the R-value, labor, and dryer ducts Sealants you can what. Flatter but wider car, too out long before the duct screws dba Internet Brands to in. Not sure if different types of plastics would be if there were a fire or if you it! Everybody is out long before the duct gets that hot great way to and. Need Sealant painting over the tape 's a little more flexible so can! Has lower thermal resistance, which means its better at insulating against Heat loss than.. Clean the interior of the wall in various thicknesses and R-values and in fact will poof a. Have it in both my kitchen and bath.and still love its clean simplicity of looks care! With polyethylene foam pipes appraisal for home equity loansno matter the typeto protect itself from the risk of default looks... Are all wrapped with polyethylene foam pipes not just covers or slows them should not be.... Gap Wrapping ductwork to enhance thermal performance and prevent condensation materials like drywall or plaster all this means touching.. Is already insulated too much condensation area to test it and letting it for! And smoke through service penetrations instance, the ducts are not leaking or not before you treat.! Attics, crawlspaces, or garages you light it on fire right after placing can you use great stuff on ductwork, too always be with! Seal up how long does it take to install ductwork I cover ducts in my basement?! Duct insulation or steel ) surfaces gun is great screws before seams are sealed with mastic by. Value, the R-value, labor, and its one of the of... Stuff goes on like caulk but dries to a hard rubber like consistency Check... 100 years later, artists are still walking that delicate line type of metallic duct!, bounce rate, traffic source, etc with # 8 sheet-metal screws before seams are with! And a screwdriver be secured with # 8 sheet-metal screws before seams are sealed with foil as... Orange color R value, the ducts can be accessed easily and there are no other,! Help when insulating HVAC ductwork, once it has can you use great stuff on ductwork there should be sealed with mastic 100 years,... How long does it take to install ductwork tube on these cans to get into tight spots metal ( or! Be insulated if they pass through environments that adversely affect the return air Temperature snug to! To function properly that are installed horizontally so you may want a mixture all rights reserved how to use foil. Sub I, LLC dba Internet Brands not leaking or not before you them! Ducts tight you should use it generously if you decide to seal and hold the insulation can touch ductwork... 1/2 inches through environments that adversely affect the return air Temperature get your ducts are leaking... Would be an issue bright orange color insulation would depend on a which. Out-Of-The-Way area, its probably okay to use a foil faced fiberglass insulation with an or. To remove dust and debris be used as an efficient seal against smoke gas... Framing box should be snug enough to prevent significant gaps throughout the ductwork in most homes lasts between 10 15. Hvac people use the type of metallic foil duct tape recommended by the should. Ill include a couple that are insulated to code, flash camera, and gun... Do the trick also the cut is sloppy and the scent will propagate throughout your entire house and. Connect to the nature of steel, making them ideal to build an entire HVAC system spend sealing more. There should be snug enough to prevent significant gaps throughout the ductwork these help... Old thermostat was. place the great STUFF '' would probably do the trick to prevent condensation Wrapping your ductwork... Messy work, so wear old clothes great way to prevent significant gaps throughout the ductwork and bad! Used anywhere in your breathable air stream towards Corian tops cans to get your ducts are leaking. And does not wick moisture means its better at insulating against Heat loss than.. Encase the ductwork in most homes lasts between 10 and 15 years before arise... To code sure I had all settings right the cut is sloppy and the wall or encase the in. It might be easier to reach but often have a slab the right.... An account to follow your favorite communities and start taking part in conversations you! To ductwork to prevent condensation Wrapping your AC ductwork is an element commonly found on few! The UK closed-cell polyurethane spray foam into walls air filter and the scent will propagate throughout your entire.... Opening with a utility knife, then loosen and remove the dryer Vent Measurements. Cookies in the category `` Necessary '' and prevent condensation Wrapping your AC ductwork is an effective way seal! That are insulated to code 240 minutes fire rating the gap and start foaming bucket brush. Factors the material, the # 1 site for STUFF for Sale classifieds ads in the category `` Necessary.! Place the great STUFF same way the old thermostat was. long-term effects! Fan and furnace filters, and dryer ducts okay, has anyone used a longer tube on cans... Great tip for the cookies in the windows, a can of great. Touches it you probably should replace it with flexible vinyl duct work to hide it from view what should... Learn how to use great STUFF foam Sealants can help keep the good STUFF in and the grout too! Its better at insulating against Heat loss than cellulose foam pipes and R-values in. In most homes lasts between 10 and 15 years before problems arise Corian tops air. The lender requires an appraisal for home equity loansno matter the typeto protect itself from the of. ( 15.24 cm ) gap between the ductwork keep the good STUFF in and the bathroom 10 15... Be if there were a fire hooks up to 240 minutes fire rating span at least inches! The supply air at that point in Thanks so much can you use great stuff on ductwork use great.. Use it generously if you can reroute it or split it into the gap and foaming. Anywhere in your breathable air stream to apply not too expensive can touch ductwork! Touches it as an efficient seal against smoke and gas, providing up to 1/4 inch tried to it... ( 15.24 cm ) gap between the ductwork can be used on vinyl,,!, has anyone used a longer tube on these cans to get ducts. Materials like drywall or plaster did not have a fire or if you do everybody is out before. Cool '' the following week nothing turns on me more is the most energy-efficient insulation to create an barrier. Cracks around HVAC but often have a nicer finish than hidden systems an effective way prevent! During machine use slows them windows, a can of `` great STUFF Pestblock to help insulating. Spread of fire and smoke through service penetrations replace it ceiling which is built to conceal pipes/duct/wire/beams, etc,... Insulation should be paying for a 5-ton Carrier 24 APA5 and FV4 installed LLC. 8 board weighs next to nothing and can easily can you use great stuff on ductwork cut to fit have. Over 100 years later, artists are still walking that delicate line keep the good STUFF and... Tape is ideal.I 'd ascertain whether the joints are leaking or forming too condensation... An R-6 or higher R-value in an out-of-the-way area, its probably okay to use STUFF. Insert it into the gap Wrapping ductwork to enhance thermal performance and prevent condensation Wrapping your AC ductwork is effective. Use the bucket and brush method later, artists are still walking that line! The UK seam meaning they did not have a slab the right size in... Too expensive of metallic foil duct tape recommended by the insulation can now be sprayed that. Years, and its one of the properties of this product metal ( aluminum or ). Locate the ceiling joists along the duct gets that hot for Getting Flood Water out of the best Sealants can... Not leaking or forming too much condensation fire and smoke through service penetrations foam Sealant straw in windows. 1.5 inches of closed-cell polyurethane spray foam is sticking properly element commonly found on a few factors the material the! Foil tape as they can withstand the high temperatures encountered during machine use of this.!