I'm new at this so forgive me if I'm a little dense.
I just took the trim off to insulate around my windows with low expanding window & door spray foam. I had something in mind for what I was supposed to see but I'm not seeing it.
I expected to see shim space or a gap between two pieces of wood framing all around the window. I'm seeing a gap, but it's just around the outside of the frame and the drywall. Here's a couple of pictures.
The effectiveness of the foam will depend largely on how well the opening is insulated/sealed in the first place, but as WoW said, it definitely will not hurt. If some of the gaps are really tight, you can just cut the drywall back a little bit to make sure that you seal it properly. It will be covered back up by your casing, so it need not be pretty.
Well after cutting back the drywall just a little bit more, I noticed that it does look like shim space and there was just some batt insulation stuff in there. Not bad. I know that is how they used to do it back then. I prefer to this with low expanding foam though for a better air seal and to be more comfortable when next to the window.
Both of you guys have worked a lot with foam right? Do you know the best way to remove it from surfaces after it gets on them? I try to be as careful with it as possible, but it's hard not to get it on something. A little got on my wood floor. I was told that maybe nail polish will work?
Unless you are using the water-based stuff (daptex) you will need some type of solvent. Nail polish remover will probably work, otherwise mineral spirits or something along those lines. They sell a cleaner for it which seems to be acetone in a spray can... What ever you use, be sure to test in an inconspicuous spot first to make sure that you don't take the finish off of your floor.
I use only DAP around windows and doors. Easy to clean up, and less messier when working with it. Just do not use the DAP foam around Copper materials, since it will react with Copper.
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