Q: I was looking at my roof and I noticed a dark streak where two roofs meet and form a valley. I had a contractor friend check the shingles and he said I had a couple of years left before the roof ...

Flashing is a good way of preventing water from entering a dwelling at the point where the roof meets the walls. To begin the installation, fold a five-by-seven piece of aluminum flashing lengthwise.

Plumbing vent flashings are notorious spots for roof leaks. If you have a leak in the general area of a plumbing vent, check the condition of the vent flashing. Look for rust holes or gaps around ...

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 ...

Regarding safeguarding your home in Castro Valley and across the East Bay, most people believe shingles are the primary defense. However, the often overlooked roof flashing is the true hero in ...