Asphalt, wood shakes, slate and other overlapped roofings are fine until they meet an obstruction. Up against a dormer, a vent pipe, a chimney, they need flashing — a patchwork of metal sheets, and ...

The intersection between a roof and a sidewall can be a rot problem waiting to happen. Even if the roof has been properly flashed against the sidewall (this one hasn't), water can still run down the ...

Q. I had a home built this year and decided to have it inspected. The inspector found a problem with the “counter flashings,” which he said were improperly installed. The metal flashings are on the ...

In this week’s column, I’m going to explain where almost all roof leaks happen, and how simple it is to prevent or fix them. Most professional roofers will agree that a roof’s flashing is at the ...

Q:I have a two-story home with an attached garage, and where the garage roof meets the second-story wall of the house I've had a persistent roof leak that no one seems to be able to solve. The home is ...

Q: Tim, I really need your help. My roof is leaking, and my last attempt to get it repaired was fruitless. It rained again and water still came in. Where do most roof leaks happen? Is it OK to use ...

Several weeks ago, I wrote about the different types of roofs you can use on your home. I should have realized it would create a tsunami of help requests regarding roof leaks at my “Ask Tim” page on ...