Originally Posted by
Timberridge
Its been on for 2 decades, and I'm still waiting for a leak--what would make it more prone to leaking than any other roof? It's been thru one east coast Cat 1 hurricane (Irene), and many nor'easters that have ripped the asphalt shingles off other homes in the hood. And I walk on it 2X a year to clean the gutters and stuff.
If your parents shingles end up in the driveway its probably because they used the wrong nails (galvanized), and/or crappy PA slate. Both were common during the 30-40's war years.