In spring, I'm going to be doing a tear off and re-roof on a cabin we have as a vacation home. The challenge is that my time there is limited. I'm going to be able to recruit a bunch of help for the tear off, but the reroofing will go slower. It may take 2-3 weekends after the tearoff to get the shingling done.
Instead of using roof tarps, I was toying with the idea of installing ice/water barrier over most of the roof. It would give me a fairly weather tight system until I could get shingles installed. I realize it's a cost issue, but I ran the numbers for a 16 square roof and it didn't seem too bad. How long can the ice/water be exposed to the sunlight before it causes issues? Am I crazy for considering this?