Suppose I want to cover a roof with corrugated steel sheets. Imagine a sheet laying on the roof. It will have "tops" - zones that are further from the roof surface and "bottoms" - zones that are ...
I'm considering a new roof for my suburban home. The home is about fourteen years old and the shingles are in so-so shape. We have had two leaks already and I've been told that means it is a good ...