Spreading a hot bucket of tar on a roof is not my idea of fun. So when the roof of my 1951 falling-downer garage really began springing a leak, I went to the local Home Depot and discovered the GAF Liberty™ roofing system. Essentially it is a peel and stick shingle that comes in a long roll. It looked perfect for what I had in mind which was simply covering up my roof as quickly and cheaply as possible.
My roof already had two layers of shingles and I had no desire to spend much money on it. I simply wanted to halt the deterioration so I could decide what to do next. A blue tarp was not the answer.
Only 4 hours later, the roof was completely covered with a more or less permanent shingle covering. This is how I did it, the manufacturers directions are probably different: You simply roll the shingle out, align it where you want, then pull the plastic backing out from underneath it to reveal the adhesive. Press it into place, cut the end to length and it is done. No hammering nails, no hot tar, no torches, I didn’t strip the old shingle off or put in the underlayments which probably the manufacturer would like to happen. However, it looks like a pretty permanent fix.
Drawbacks: like all roll-type shingle, it doesn’t look as good as regular shingles. You can tell where the seams are. Price might be an issue: it was on sale at my local store for $20/roll but was originally $54.95. I think it was not very popular and the store wanted to get rid of it. This is a shame because it is a good product. Places where this might be un-beatable are, multi-family, post disaster quick fixes or smaller buildings like sheds.