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 ...

Even with a fairly new roof like this, it won’t be long before the dark algae stains start making it look really bad. And it’s only going to get worse as it gets older. But here’s what you can do to ...

Not a week goes by that I don’t get a question at the Ask Tim page on askthebuilder.com about cleaning this or that household surface. As it turns out, I happen to know lots about cleaning. I ...

DEAR TIM: My house must be a magnet for algae. I have green algae on the shaded parts of my deck; it’s also on my patio and my vinyl siding. Furthermore, I believe there’s black mildew on my siding.

Q: Our 21-year-old house has its original roof. We've been fortunate not to have experienced any leaks except one time years ago after a very windy rainstorm. A local roofer repaired the problem at ...

If you've noticed dark streaks and stains on your home's roof, now's the time to take action before more damage is done. These stains are caused by algae, moss, mildew, bird droppings and other ...

Q.My house must be a magnet for algae. I have green algae on the shaded parts of my deck; it's also on my patio and my vinyl siding. Furthermore, I believe there's black mildew on my siding. Then ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Q My roof has been infected with a specific type of alga called Gloeocapsa magma, which causes unsightly black spots and/or ...