Temporary solution
Everything I read and studied about this product was true. The conditions must be perfect temperatures for the product to work well. Getting the product on the tanks to 80 degrees was very difficult. I was told by the foam roof experts that I sprayed too cold? I stored the takes in a room with the average temp at 72 degrees. The day of the spraying, I put them directly in the sun for 3 hours on an 85 degree day. I am an accomplished DIY guy, and this was a true task. Really should be left to the professionals. I only recommend use as an emergency patch to hold until a roofer can redo your roof. When applying, use wide arcing pattern. Use a couple of thin layers. Will expand considerably!