Q: My builder is talking about installing metal flashing as he's putting up my vinyl siding. What in the world is this material, and why is it necessary? I don't want to waste money, so can you tell ...

Q. I have a simple sloped roof over a side porch on my new home. Each time it rains, water leaks down the wall of the porch. The vinyl siding above the roof simply touches the shingles, and there is ...