![]() If I did, I would think I would need to use drywall tape or mesh to hold the ductwork together if I am not screwing them together. I got the major energy wasters out of the way. I am assuming there is diminished returns for masticking the rest of the ductwork. Almost all the ductwork, except for the ones directly coming from the coffin-shaped/sized ducts, are manually fastened together, held together by duct tape. I will use blocks of wood to support the duct under the boot over the concrete. Unfortunately, it would be impossible to screw any ductwork together under the boot because of lack of workable space. I'll might go back tomorrow and get the drywall mesh or tape and redo those areas. I just used a lot of mastic to cover any larger gaps. Although I was directed to drywall supplies. I couldn't find any fiberglass mesh at Home Depot. I used a 2 inch paintbrush to apply mastic, but half the time I used my glove. I wasn't sure it would hold, so I unravelled the tab tape, rolled into some sort of ball, and supported the duct under the boot over the coffin. Took a lot of manipulating myself into a pretzel, wobbling on an old cabinet(no step ladder)to fasten one piece of duct into a piece of duct coming from the coffin, then fasten it to the boot. Almost impossible to get to because a gas pipe was also parallel to the coffin-sized duct. ![]() Above a coffin-sized ductwork was the area where the duct was disconnected from the boot. I used the tab tape to support the duct elbow on a nightmarish ductwork refastening. They also had something called tab tape, which is a a roll of metal support straps. Lowes didn't have any mastic, but Home Depot did. Took two hours to mastic 5 ducts to their boots, including collateral elbows and other joints. If you have any problems with the registration process or your account login, please contact support. We suggest not registering using an AT&T, BellSouth, AOL or Yahoo email address. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions.Īll this and much more is available to you absolutely free when you register for an account, so join our community today today!.Post photos, respond to polls and access other special features.Participate in over 40 different forums and search/browse from nearly 3 million posts.As a registered Guest you will be able to: ![]() To gain full access to our forums you must register for a free account. You are currently viewing as a NON-REGISTERED guest which gives you limited access to view discussions Welcome to, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! Here you can join over 150,000 HVAC Professionals & enthusiasts from around the world discussing all things related to HVAC/R.By continuing to use the website, you consent to our use of cookies. To learn about our use of cookies and how you can manage your cookie settings, please see our Cookie Policy. Sorry, I'm sure this stuff gets asked a lot.but I'm pretty nervous about the install and want to do it right.We use cookies to improve your website experience. I have seen people use it under the fan (where most people but the butyl tape).I'm leaning towards butyl for this.but I have seen at least one person use a combination of butyl and dicor underneath.what are your thoughts? Is it a good idea? Or better to use one or the other?Īlso.is eternabond pretty straight forward? Or are there different types? I was going to use Dicor self leveling lap sealant over top of the screws and brackets (and around the outside of the fan).but I'm concerned that it might not last super long.and can be affected by the sun. If anyone has any thoughts or advice on the best way to do this, I would love to hear. Not 100% but after watching dozens of videos this is where I'm at. I am thinking of putting butyl tape (and possibly dicor).underneath.and then covering screw holes/brackets with eternabond tape. I am getting ready to install my maxx air fan and solar panels.ĭoes anyone have recommendations for good butyl tape?
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