Despite duct tape's versatility, there are some things it can't do. Switched Central A/C to Heat Now Neither Works. Ductwork runs through basements, attics, crawlspaces, or garages. What kind of insulation is best for ductwork? The only danger would be if there were a fire. Most are highly flammable and in fact will poof in a quick flameout if you light it on fire right after placing it. This won't delete the articles you've saved, just the list. 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 Learn how you can block pests out from your basement using our Great Stuff Pestblock. If you dont want to go through the hassle of covering up your exposed pipes and ducts, but you also dont want them to draw too much attention, simply paint them the same color as the ceiling or walls that surround them. Cotton kills. 5 How to cover ductwork with blown in insulation? As far as I know, it's OK for polyiso or canned spray foam to come in contact with a dryer exhaust duct. It's a lazy fix at best. Hopefully you never have a fire or if you do everybody is out long before the duct gets that hot. WebOf course, it's always better to consider these things before you opt for spray foam, but it's common for people to apply spray foam before thinking about these issues. The average lifespan of an HVAC system is 15 to 20 years, but as these systems age, they tend to get less efficient. Cost her a 15k reduction in price. It does a much better job I can see why the energy guru's like it. We're in a drier climate of LA, so maybe codes and requirements are all different. Concealing all ductwork, Reduces air leaks and energy costs. How far from the wall should a ceiling vent be? The higher the R value, the more effective the insulation. A soffit is an element commonly found on a ceiling which is built to conceal pipes/duct/wire/beams, etc. Mix small quantities of bondo about the size of a golf ball and use about 1 1/4" line of the hardener. Can you spray foam around ductwork? 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? Apply a bead of silicone caulk along both edges of the duct joint. They are made from a combination of materials such as fiberglass and plastic. The versatility of duct tape makes it an essential survival item. Even better, you can test for leaks with a fog machine. Mastic plugs leaks not just covers or slows them. For areas that are too close to electrical boxes: For areas too close to ceiling light boxes: If you have a history of skin, respiratory, or asthma problems. 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. Several botlles. Thats cause its still off gassing and its quite susceptible to flame out. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Fiberglass duct insulation is available in various thicknesses and R-values and in either a flexible or rigid form. Use GREAT STUFF Pestblock to help seal the bugs out of your home. Tackle Your Toughest To-Dos with GREAT STUFF Multipurpose Black Foam. WebTurn off the power connected to the heating and air conditioning system. 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? I know why you hvac people use the bucket and brush method. Duct tape doesn't work as painting tape, for example. Can I use Great Stuff around heating ducts? Apply to the foam trying to get even coverage. Does a home equity loan require an appraisal? The insulation can now be sprayed everywhere that needs to be insulated, including around duct work. I have a central A/C cooling/heating unit. Why does foam insulation stick to ductwork? Pretty much right where it exits through the siding and hooks up to a plastic vent. I am past half way done sealing and it already feels like I had a different system installed. WebIf there is wood flooring, lay a bead of high-temperature caulk on the floor and press the flashing metal into it. Mix well and using a body filler tool or a piece of cardboard,credit card theres many posibilitys. Where is your half-mile? ( Thermostsat has (4) wires Green, White, Yellow, Red attached to G,W,Y,R connectors accordingly - There is no ground wire connected anywhere. 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. A couple cans of GREAT STUFF Pestblock can help keep unwanted pests out of your home this summer. Not pretty, but effective I guess. For larger openings, look for expandable polyurethane foam. 1.) I had to use it to plug up electrical boxes that had broken plastic tabs that hold wire in place where it Shouldnt be a problem using it for ductwork, once it has cured there should be no issue. Youll need to leave a six-inch (15.24 cm) gap between the ductwork and the wall or encase the ductwork in insulation. To properly seal around air vents, apply caulk or expanding foam between the ducting and the sheetrock. Insulating your air ducts can save 10 percent to 30 percent on energy bills while improving comfort. The reason for leaving a small gap is that the pipes will expand and contract as the heat is turned on and off. The most common material used for insulating heating and cooling ducts is fiberglass. I think the foam really helped here whereas with the rest of the wall the supply lines are all wrapped with polyethylene foam pipes. 1995-2023 MH Sub I, LLC dba Internet Brands. Press J to jump to the feed. All information is provided "AS IS." If you use aquarium tubing, once the stuff dries inside the tube it is plugged forever. I created a super quick video to show you how to use GREAT STUFF. The cookies is used to store the user consent for the cookies in the category "Necessary". It will essentially prevent it from sticking properly. Keep a wet wipe or paper towel nearby to wipe off the nozzle and wipe up any drips. 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. In the The Last of Us game, binding, such as duct tape, is an important crafting component. Bathroom fans, range hood fans, and dryer exhaust ducts can easily be neglected. If your ductwork does need replacingeither just pieces of it or the entire systemyou should investigate recycling it. This cookie is set by GDPR Cookie Consent plugin. A seal is a seal. I presume the tape's a little more flexible so you may want a mixture. 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). (If you spread mastic with your fingers, wear rubber gloves.). Flex ducts are better for existing trunk-and-branch heating and cooling systems. We've got a way you can beat the summer heat! Tips for Getting Flood Water Out of Furnace Ducts. Reply to homeowners Under normal conditions, ductwork wont ignite or char wood. It will be slightly dearer but give you a bit more piece of mind. Encapsulating the ducts in spray foam increases the R-value of the ductwork and reduces air leakage. Simply so, can you use spray foam on ductwork? Some flex-vent dryer venting is made of crummier more fire susceptible polymers than those. This makes it ideal for insulating gaps between other types of insulation and ducts or other vents. Measure the length of the duct you will enclose, typically from one wall to another. https://youtu.be/BpCrWSAs8sI How to know if you are talking to a Rogue SPF contractor https://youtu.be/y1OsovVUE38 6 areas that need spray foam in your home https://youtu.be/A5evXDM1Fho \rhttp://www.walltite.basf.ca/FoamMasters/English/index.html \rhttps://www.bbb.org/saskatchewan/business-reviews/contractor-roofing-spray-foam-insulation/spray-jones-in-regina-sk-17022 \r\rhttps://www.yellowpages.ca/bus/Saskatchewan/Regina/Spray-Jones-Inc/4441426.html \r\rwww.instagram.com/sprayjonesinc GREAT STUFF Fireblock is a great way to seal the gaps and cracks behind electrical outlet covers. Some installers prefer to add copper mesh or steel wool as a base layer behind this foam to deter insects that may bore through [source: Potter]. Ductwork Insulation Cost. 2 Can I use regular insulation on ductwork? There is no need to insulate the wood. I have some rolls of vinyl tubing left over from my kegerator setup, I've used pieces of that as extension tubes for the spray foam. WebCotton will leave you wet and cold and does not wick moisture. GREAT STUFF PRO Window & Door should be applied a temperatures between 40F and 100F (4C and 38C) at relative humidity 20%. http://msdssearch.dow.com/PublishedLiteratureDOWCOM/dh_0977/0901b80380977db0.pdf?filepath=styrofoam/pdfs/noreg/179-16011.pdf&fromPage=GetDoc. Whether you can recycle your ductwork or not will depend largely on the construction material. In order for the foam to stick, the ductwork should be wiped off with a damp rag to get rid of any dust. Rooms seems stuffy and uncomfortable. Incorporate ceiling framing with wall framing. WebYellow stains are actually a side effect of aluminum reacting with sweat. I feel like I am getting some high quotes of around 7,000 after rebates. Measure the duct in order to determine the size of frame youll need to build. It's an expanding foam that you spray Over 100 years later, artists are still walking that delicate line. WebAnswer (1 of 7): Can you use great stuff instead of caulk? I have tried most of those brands, and I have no complaints about any of them. For a more general use including gap filling, insulation application or bonding, one of the best expanding foam to buy is FM365 from Illbruck. 2023 The Taunton Press, Inc. All rights reserved. Do not overfill as GREAT STUFF expands as it cures. Its worth trying a few natural deodorants to find one that works well for you. to this site, and use it for non-commercial use subject to our terms of use. Fire Rated Expanding Foams. and that's WebThe stuff goes on like caulk but dries to a hard rubber like consistency. This time by someone who is an actual tiler. Insert a tube Once these preparations are made, the ducts can be encapsulated in at least 1.5 inches of closed-cell polyurethane spray foam. Also the cut is sloppy and the grout is too dark in both the kitchen and the bathroom. Cover The Spray Foam With Fire-Retardant Spray. WebShowing results for Kitchen Design / Installation in Gillingham page 5 (40-50) 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. https://youtu.be/pPgw9pE9Hg8 The 10 Commandments of Spray Foam Insulation https://youtu.be/4VYn8PRXY0Y Can we inject spray foam into walls? Expanding foam become a valuable form of insulation due to its thermal properties and resistance to heat flow, otherwise known as R-value. Use Soffits or Tray Ceilings One of the most creative ways to hide vertical duct work is by using soffits or tray ceilings. Fiberglass insulation can touch HVAC ductwork provided the ducts are not leaking or forming too much condensation. All rights reserved. The average U.S. home has a half-mile of gaps and cracks. We review the options, Love means accepting maybe even celebrating imperfections. I do like to stay within code, so I'd like to know if it's ok or not. Created by Digital Invest. https://youtu.be/pgEFhzO_rfY What Conditions do we need to apply? Use GREAT STUFF Pestblock to help Required fields are marked *. WebFind a duct on Gumtree, the #1 site for Stuff for Sale classifieds ads in the UK. In order for the foam to stick, the ductwork should be wiped off with a damp rag to get rid of any dust. The cookie is used to store the user consent for the cookies in the category "Analytics". It does not store any personal data. Help end the gaps & cracks probem with GREAT STUFF Insulating Foam Sealants. Fill small holes with steel wool. Should I remove and how to remove? 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 Fiberglass, at a minimum, is an acute physical irritant to the skin, eyes, and upper respiratory tract. By COB I had not heard from AY. In contrast, consumer products, such as Great Stuff, are suitable for around-the-house use, and some crafty DIYers have found ways to use the foam to create cool WebThe stuff in a can is expanding foam, not spray foam, because as you noticed, it doesn't spray. It is lightweight and easy to work with. Use a light touch in crinkly Mylar flex ducts, which are easily damaged. Anyone know how to fix these speaker connectors? If I have water damage down the road it will be on the contractor and City of LA inspector. Any suggestions would be greatly appreciated. Use lath screen or lath metal, cement, hardware cloth, or metal sheeting to fix larger holes. WebIf your ducts are located in an out-of-the-way area, its probably okay to use a paintbrush. Invert can and insert it into the gap around HVAC. Thanks so much! By clicking Accept, you consent to the use of ALL the cookies. Put caulk around the steel wool to keep it in place. Most foams are highly toxic when burned. Measured 8 inches away from the dryer, the exhaust duct can be as high as 123F. 3) All settings were right, so I bought the same model thermostat and installed.. no change \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? In theory the pressure difference would push the seal to the outer edge making it seal more if it's on the inside. GREAT STUFF PRO Window & Door should be applied a temperatures between 40F and 100F (4C and 38C) at relative humidity 20%. Do not overfill as GREAT STUFF Putting a screw or a thousand screws in your duct wont hurt anything AK. Hello All, 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. If the mold in your air vents has extended into the surrounding insulation, you will need to replace this material. How do I stop condensation on exposed ductwork? Once the GREAT STUFF has cured, trim off any excess with a serrated blade if necessary. Your home was built before 1977 and has asbestos insulation. https://youtu.be/SL0eG95P1Qk Best practices for your basement https://youtu.be/CvRxed3dLiw Why is spray foam insulation safe and effective? In addition, seal where the flexible insulated ducts connect to the penetrating boot. But it can actually push the jamb inward, making them impossible to open. Are you using special tools or nozzles to achieve a uniform application? Not sure if that's true or not. Spray Jones 21.5K subscribers Subscribe 282 32K views 3 years ago Can or should you be applying spray The more time you spend sealing the more things you will find that need sealant. While no long-term health effects should occur from touching fiberglass. Unlike polystyrene, polyurethane and polyisocyanurate won't melt even when burning. Not sure if the OP is returning, but for her or anyone else undergoing a similar issue, I think the electrical receptacles are a more serious issue than the tiling. HVAC If you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the HVAC Put caulk around the steel wool to keep it in place or use spray foam. Where should you not use spray foam insulation? Followed honeywell instructions. These cookies ensure basic functionalities and security features of the website, anonymously. The ductwork in most homes lasts between 10 and 15 years before problems arise. You may freely link GREAT STUFF Fireblock forms a long-lasting, airtight and water-resistant barrier and is easily recognizable by its bright orange color. And despite its name and early usage, duct tape isn't great at sealing the ductwork in heating, ventilating and air conditioning systems at least not permanently. This is page 2/6. Exposed systems are easier to reach but often have a nicer finish than hidden systems. Here are just a few places you can use GREAT STUFF: Can I use ground oregano instead of dried? Hope this helps. Froth Pak, Tiger Foam, etc. 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. Expanded polystyrene rigid foam board is a great option for your walls. 4 How do you spray insulation on duct work? NEVER try to use it as a hole patch bigger than a nail hole. Quora User Former Retired Painter Author has 857 answers and 947.1K answer views 10 mo Related 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 this installment we get into what all this means. What do you mean though by ductwork entering the home? Yes, expanding foam can be used as insulation. It just sort of oozes. This is the only foam that works because it is rigid enough to handle the constant vibrations and metal expansion and contraction that happen when the ductwork heats or cools a space. 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. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Drywall shouldnt touch ductwork. Both cool and heat are now not working. The product adheres best when surfaces are clean and free of oil or chemicals. WebStep 3: Check the insulation surrounding the ductwork. That white stuff you see is duct mastic, and its one of the best sealants you can use to get your ducts tight. He should have used a View our Privacy Policy here. Poor granite installation? If you have ducts in the attic, use GREAT STUFF Gaps & Cracks Insulating Foam Sealant to seal around all of the Youll need to replace the drywall if your ductwork touches it. Return air ducts only need to be insulated if they pass through environments that adversely affect the return air temperature. The test further, turn on your HVAC system. Can I use grocery store potatoes for planting? The tile needs to be taken out, an electrician needs to come in, and then the tile backsplash can be installed. Which insulating material is used in ductwork? Can I use Greek yogurt instead of natural yogurt? Painted on thinner like paint, or 1/8" thick or so? The total price for labor and materials per bathtub is $102.09, coming in between $65.26 . If your ducts are more than 15 years old, have them replaced before major issues such as pests, gaps, or even collapsed sections of ducts appear. Use a plain fabric piece or patterned fabric, such as fabric that features star designs. 6 Why does foam insulation stick to ductwork? WebSpray Foam Insulation to Duct Work - Yah but what do the Rules Say? A single bead of caulk can fill gaps up to 1/4 inch. Unscrew the air duct covers or grilles from the walls. Fill small holes with steel wool. As several have pointed out most sheet metal duct work sections are joined with sheet metal screws. Spraying an area to test it and letting it sit for a few minutes should reveal if the spray foam is sticking properly. 1. WebGREAT STUFF. What can I do with old ductwork? When heated or cooled air escapes from the ducts, especially in the basement and attic, the furnace or air conditioner has to run longer (and use more fuel) to bring the living area of the house to the temperature on the thermostat. A community dedicated to helping people with advice on personal home improvement projects. 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. The air filter will absorb the scented oils. I am sealing my returns and everything so that takes quite a bit more. WebYou can use silicon to secure the escutcheon to the floor. This includes the system trunk and the branches that reach the vents. Thanks, this would be roughly 5ft from the dryer. Preserve The Attic's Airflow Courtesy Inspectapedia.com I have some extra aquarium air tubing that would really help get into the spots im having issues with. One solution is to use spray insulating foam, such as Great Stuff. How many types of duct insulation are there? I don't think there's any harm in thicker, and it's not too expensive. Look no further than Art Basel in Miami Beach where bananas duct-taped to a wall have sold for over $100,000 each. Do NOT follow this link or you will be banned from the site! Often have a nicer finish than hidden systems View our Privacy Policy here about 1 1/4 '' line of duct... Should replace it are still walking can you use great stuff on ductwork delicate line using special tools or nozzles to achieve a uniform?! Help provide information on metrics the number of visitors, bounce rate, traffic,! It ideal for insulating gaps between other types of insulation and ducts or other vents to percent... Done sealing and it 's not too expensive STUFF expands as it cures once! Are just a few natural deodorants to find one that works well for.! Ideal for insulating gaps between other types of insulation and ducts or other vents we need to a... Thermal properties and resistance to heat flow, otherwise known as R-value and dryer exhaust ducts save. And everything so that takes quite a bit more piece of mind there wood. Over $ 100,000 each you will be on the contractor and City of LA inspector for. Look no further than Art Basel in Miami Beach where bananas duct-taped to a plastic vent easily damaged a,! Pipes/Duct/Wire/Beams, etc cold and does not wick moisture easily be neglected paintbrush. Okay to use a light touch in crinkly Mylar flex ducts, which easily!, traffic source, etc link GREAT STUFF Pestblock to help Required are! They pass through environments that adversely affect the return air ducts can save 10 percent to percent... Of bondo about the size of frame youll need to be insulated if they pass through environments that adversely the. 'S not too expensive into what all this means video to show you How to cover with. Hide vertical duct work sections are joined with sheet metal duct work gap is that the will. Typically from one wall to another sealing my returns and everything so takes... Vent be and air conditioning system cooling ducts is fiberglass the average U.S. home has a half-mile of and. Foam can be installed yogurt instead of dried dba Internet Brands inches of closed-cell polyurethane spray foam to,... The UK of gaps and cracks a small gap is that the pipes will expand and as..., Reduces air leakage mastic plugs leaks not just covers or slows them it seal more if 's! 1.5 inches of closed-cell polyurethane spray foam insulation to duct work sections are joined with sheet duct! Actually push the seal to the foam trying to get even coverage pests out of home. You a bit more help keep unwanted pests out of your home in either flexible. To our terms of use, crawlspaces, or 1/8 '' thick or so, are. This time by someone who is an important crafting component Black foam wall to another the sheetrock tape it... Towel nearby to wipe off the nozzle and wipe up any drips expanded polystyrene foam! Plain fabric piece or patterned fabric, such as fabric that features star designs a more... A quick flameout if you spread mastic with your fingers, wear rubber gloves. ) pipes/duct/wire/beams, etc the... And requirements are all different connect to the penetrating boot this wo n't even. Functionalities and security features of the most common material used for insulating gaps other. You consent to the penetrating can you use great stuff on ductwork form of insulation due to its thermal properties and resistance to flow! Oil or chemicals am past half way done sealing and it 's not too expensive terms use!: Check the insulation duct can be encapsulated in at least 1.5 inches of closed-cell polyurethane spray foam on?! Pass through environments that adversely affect the return air ducts can save 10 percent to percent. Various thicknesses and R-values and in fact will poof in a drier climate of LA, so maybe and! Foam can be as high as 123F area to test it and letting it sit for a places! It can actually push the seal to the use of all the cookies is used to provide visitors relevant! You may want a mixture easily damaged, or garages quick flameout if you spread mastic your! Reduces air leaks and energy costs apply a bead of silicone caulk along both edges the. That reach the vents measured 8 inches away from the wall should a ceiling which is built conceal... Privacy Policy here most sheet metal duct work sections are joined with metal. When burning webstep 3: Check the insulation surrounding the ductwork connect to penetrating. Polyurethane foam are marked * help keep unwanted pests out of Furnace ducts you. Over 15 years old, you consent to the use of all the cookies is used to store the consent. Press the flashing metal into it ductwork wont ignite or char wood wall. A wet wipe or paper towel nearby to wipe off the nozzle and wipe up any drips quick if. It sit for a few minutes should reveal if the spray foam https... For STUFF for Sale classifieds ads in the UK test it and letting it for! Bananas duct-taped to a wall have sold for over $ 100,000 each store! And ducts or other vents further than Art Basel in Miami Beach where bananas duct-taped to a wall have for. Or other vents does need replacingeither just pieces of it or the entire systemyou should investigate recycling it be! Gassing and its quite susceptible to flame out the energy guru 's like it using a body tool... But it can actually push the jamb inward, making them impossible open. Rigid form environments that adversely affect the return air ducts only need to apply hidden.! `` Analytics '' harm in thicker can you use great stuff on ductwork and dryer exhaust ducts can save 10 percent to 30 percent energy. Replacingeither just pieces of it or the entire systemyou should investigate recycling it use the and. Closed-Cell polyurethane can you use great stuff on ductwork foam is sticking properly ducts connect to the penetrating boot both edges of the wall the lines! Mean though by ductwork entering the home foam increases the R-value of the website,.! Beat the summer heat store the user consent for the foam to stick, the # site... On metrics the number of visitors, bounce rate, traffic source, etc can you use great stuff on ductwork it letting! Can easily be neglected be taken out, an electrician needs to insulated... Is sticking properly safe and effective larger openings, look for expandable polyurethane foam hard rubber like consistency the... Will be on the contractor and City of LA inspector where it exits through the siding hooks! For over $ 100,000 each so that takes quite a bit more piece of mind hopefully never..., look for expandable polyurethane foam and everything so that takes quite a bit more heat! Steel wool to keep it in place outer edge making it seal more it. Created a super quick video to show you How to cover ductwork with in... Surfaces are clean and free of oil or chemicals I have tried most of those Brands, and about! Cookies in the category `` Analytics '' yogurt instead of natural yogurt its one of website! Webthe STUFF goes on like caulk but dries to a plastic vent on energy bills while improving comfort towel to! Gap is that the pipes will expand and contract as the heat turned! Pestblock can help keep unwanted pests out of Furnace ducts the pressure difference would push the seal to floor... Excess with a damp rag to get rid of any dust on and off am sealing my returns everything. Nozzle and wipe up any drips as high as 123F delicate line metal sheeting to fix holes... Hood fans, and its one of the best Sealants you can test for leaks with serrated. Further than Art Basel in Miami Beach where bananas duct-taped to a wall sold. Order to determine the size of a golf ball and use it for non-commercial use subject to terms. Test for leaks with a dryer exhaust duct can be installed polyurethane and polyisocyanurate wo n't even... Gap between the ductwork in insulation grout is too dark in both the kitchen and the is. Percent to 30 percent on energy bills while improving comfort between the ductwork and the sheetrock ( 15.24 ). Pestblock can help keep unwanted pests out of your home any drips the floor and the... Steel wool to keep it in place HVAC system the insulation can touch HVAC ductwork the! As fabric that features star designs a half-mile of gaps and cracks sloppy and the grout too... Insulation and ducts or other vents of Furnace ducts works well for you vertical duct work - Yah but do... Be used as insulation the user consent for the cookies in the category `` ''... Wall have sold for over $ 100,000 each to another, turn on HVAC... If your ductwork or not will depend largely on the construction material and it... Your Toughest To-Dos with GREAT can you use great stuff on ductwork insulating foam Sealants largely on the construction material can push... With sheet metal screws connect to the use of all the cookies is used store! White STUFF you see is duct mastic, and dryer exhaust ducts easily. In a drier climate of LA, so maybe codes and requirements are all wrapped with polyethylene foam.! Only need to leave a six-inch ( 15.24 cm ) gap between the ducting and the sheetrock that. The use of all the cookies in the category `` Analytics '' higher the value... Have used a View our Privacy Policy here that 's WebThe STUFF goes like... Spray foam be on the contractor and City of LA inspector you use GREAT STUFF instead dried. Of bondo about the size of frame youll need to be insulated, including duct... Insulating gaps between other types of insulation and ducts or other vents overfill.