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Insulating garage doors
SavannahLion:
How much waste did you encounter using the 4'x8' sheets?
ahofle:
I can't remember the exact amount, but I do know that the waste pieces ended up fitting just about perfectly between the garage's studs so I just fitted them in there hehe (most of the sides of the garage were not insulated either).
AtomSmasher:
Well this thread has inspired me to insulate my garage door as well. I just bought three 1 1/2'' sheets of insulation (its tough to tell exactly, but it seems to say its rated around R7) and will be installing it later today. By my calculations I will be a little bit short and will probably have to go back and buy a quarter sheet, but I figured I'd wait and see how much I need before I do that. Total cost so far is $65 and that includes a roll of aluminum tape which I will use around the edges.
AtomSmasher:
Well I've now got one sheet of insulation installed, but its over 100 degrees in the garage, so I decided to take a break. Overall its been very easy so far. I score the insulation with a knife, then snap it off and install it, but it does take a bit of time since I'm being very careful to make the cuts accurate. One sheet cleanly fills 4 sections (16 sections total on the door) and I could use the scraps to fill a 5th section, so if I bought another quarter sheet I would have enough to finish the door. However, I would like to make each section very clean and not have a line in the middle where I taped the pieces together, and with full sheets only costing $17, I think I'm going to buy another full sheet to finish it off.
Also, paigeoliver was right. I don't need to glue or tape the insulation into the door since each section curls inward a bit to form a lip which holds the insulation extremely well. I'll probably end up returning the aluminum tape I bought and get a few dollars back.
Another thing to note, I didn't realize how hot the metal garage door actually got until now. I could probably fry an egg on it, which means this insulation should help immensely. Thanks a ton to everyone here who gave me the idea and information to be able to do this.
ahofle:
Good deal.
Just curious, how did you get the sections in? I had to score the middle of each section to 'bend' the piece to get it to go in. Then I used the aluminum tape to keep it in place. It would have been much cleaner to just have the pieces slide right in, but the stuff I got was not flexible at all.
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