DEAR TIM: Many roofs in my neighborhood, mine included, are covered with black streaks. What’s causing this to happen, and can the roofs be cleaned? I’m able to walk on my asphalt shingle roof with ...

Q I have been getting estimates to replace the roof on our home. Some don't want to remove the shingles while others say they will not place new shingles over the old ones. The prices are several ...

Dear Tim: I was inspecting my asphalt shingle roof the other day. At the top of the roof where the peak is, I noticed some defects. My shingles are only six years old so I was shocked to see ...