Re: 2 part spray foam kits
I have now used 3 of the 600 sf spray foam kits. Each kit covered very close to what I expected. About one room per kit in my case. Two exterior walls, floor to ceiling 2-3" thick (about 200sf x 3" = 600sf x1"). I am very happy with the results. Warming the tanks is important, 75-85 degrees F for at least 24 hours. A warm summer day is best. Last time I needed no artificial heating. You need plenty of fresh air and a good respirator. Still expect a nasty hangover headache the next day. There is some smell but I did not find it overpowering. In-fact until I used a tank in the attic (poor ventilation) I didn't really notice the smell.
Other tips: keep a wet rag handy, be ready to change tips as needed, wear a gloves and long pants.
The foam in these kits is not nearly as bad as the little cans. This foam cures in 45 seconds and dries brittle. You can pull it right off skin and most other surfaces once cured.
I will go this route for each of my remaining rooms as I can.
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