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1
vote
2answers
40 views

Is this algae or moss? How to remove it without damaging the shingles?

I live in the Seattle area. Below is a picture my roof. What are the green traces on the roof. Is this algae or moss? What is the easiest way to remove it without damaging the shingles and the paint?...
5
votes
4answers
217 views

How effective to use zinc strip to prevent roof moss

I live in Seattle. My 6 years old composite shingles start to grow moss this year. I read one post on YouTube that you can use a long zinc strip placed on top of your roof to prevent moss. I am ...
2
votes
3answers
823 views

How to address mold/moss on newer roof?

I have an old house with a new(er) installed roof shingle that's about 5 years old. In removing leaves from the gutter today, I noticed green moss? mold? around some of the areas close to the house. A ...
3
votes
4answers
27k views

How to remove moss from my roof?

My roof seems to be growing moss and I'd like to remove it. I did some research and it looks like the solution is to mix water and bleach, spray the mix on the moss and then scrub the moss off about ...
1
vote
1answer
542 views

Does concrete sealant slow the growth of moss?

Does sealant like Thompson's WaterSeal slow the growth of moss on concrete? I live in the rainy Pacific Northwest and moss and mold are regular problems.
8
votes
4answers
23k views

How do I remove moss from an outdoor brick walkway?

I've got a brick walkway that has parts that are in shade most of the day. Our winters are wet and cloudy and during these times it's not uncommon for the shady parts of the walkway to grow a fair ...
3
votes
3answers
742 views

Small amounts of moss on asphalt shingles?

What's the best way to remove moss from asphalt shingles?