Comments on: How to remove black streaks from shingles?

By: Cleaner Today Guide

Cleaner Today Guide — Wed, 19 May 2010 22:00:23 +0000

@steve – Cleaning the pool once drained should work. Admittedly, I have not heard of anyone trying this but algae is algae, so give it a try!

By: steve

steve — Fri, 14 May 2010 00:04:46 +0000

Would this work on algae stains on swimming pool? I’ve emptied pool, used chlorine products and power washed, all to no avail. HELP!

By: Tom Breen

Tom Breen — Fri, 05 Mar 2010 23:31:49 +0000

The streaks are mold forming on the roof, the safest way to remove is with an Roof Cleaner that is safe to use and will not harm plants or animals. Bleach and chlorine are way to dangerous.

By: fred coutts

fred coutts — Mon, 07 Sep 2009 12:27:42 +0000

thanks for the info. i have those new 3-d (layerd) SHINGLES 3years old and they are starting to show green and black stains. i will search further to see what i can find