Zinc Strips on Mossy Roof, Four Years Later Starting in 2010 I began conducting fairly long-term experiment by installing zinc strips on a moss-covered garage roof, and showed before and after photos ...

Q: My family room is attached to the house and has a two-slope, gabled roof. Moss grows on one side, so much that is becomes thick and water-logged, and water backs up under the shingles and causes ...

I've heard many roofers say that these zinc strips are worthless and ineffective, so I decided to conduct my own semi-long term test. For my experiment, I installed a zinc strip along the ridge of a ...

Moss growing on your roof can lend your home a bit of a cottagecore vibe, but it can also seriously damage your shingles and incur you roof repair costs. It’s best to remove moss as soon as you see it ...

Q. Prior to installing Z-Stop zinc strips, I recognized that I had to remove the moss buildup on the roof. It appears to be growing under the shingles and, in some cases, to be lifting the shingles.

Now it can be told. Some weeks ago, I answered a question on how to keep mildew off a roof. I suggested zinc or galvanized steel strips that are put over the ridge of the roof, or near the ridge, so ...

Q: I have algae on my roof and am confused about the proper way to control it. I have had contractors who would use a special machine. I have read about spraying on chemicals, then rinsing. I have ...

Dear Jerry: I was interested in last Saturday’s column and I wondered if you were aware of the use of a metal strip with zinc (not sure if the whole piece is zinc, or it is just metal with a zinc ...

Q: I have a northern exposure to the front of my house. It does not get direct sun. … I have black streaks and a slight green color (moss?). I recall you talking about running a strip of copper under ...