Regardless of where you live in the usa the stains are the same as well as the cleaning procedure.
Cleaning roof with bleach and tsp.
Tsp can be very difficult to mix hot water is recommended but not needed here is a simple method.
It wasn t so long ago that trisodium phosphate tsp was a go to choice for tough cleaning jobs especially on exteriors.
Roof cleaning using chemicals like chlorine bleach and tsp trisodium phosphate as a cheap roof cleaning spray to make your shingles look new again is not advisable.
Roof stains return in as few as 9 months and the roof mold is worse than before.
To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons.
Chlorine bleach tsp chemical combination can kill plants and the phosphates hurt the environment.
Not only is it unattractive it can actually shorten the life of your shingles so you really.
We use a 5 5 gallon system just for this reason.
They clearly warn against pressure washing and suggest the use of bleach and tsp trisodium phosphate.
How to use bleach mixtures on your roof.
We are a roof cleaning company in new jersey.
When mixing the tsp with bleach for roof cleaning you will want to use a pressure washer with the black soft spray chemical injector tip.
Roof cleaning using chemicals like chlorine bleach and tsp.
Why not clean my roof with bleach.
Mixing tsp for roof cleaning.
Chlorine bleach also known as sodium hypochlorite or sh is not meant to be a roof cleaning chemical because it kills surface algae but can not penetrate the roof shingle granules to remove black mold root structures.
Jul 6 2012 how to clean mold off a roof.
Mold or mildew makes black ugly streaks on a roof.