Q: When you were writing about roof repair and replacement, I never saw anything on tar-and-gravel roofs. I just bought a house. At my prepurchase inspection, I was told the roof was in pretty good ...

STATEN ISLAND, N.Y. -- Q. I'm building a room addition, and as I was doing the demolition of my outside wall I discovered tar paper was in the wall. I thought tar paper was just used on roofs. Why did ...