Extended dwell times may be necessary however avoid letting.
Algae on roofs cleaning.
While an occasional cleaning might not harm your roof repeated use of harsh chemicals or the erosive effects of pressure washing can damage or shorten the life of asphalt shingles.
Roof cleaning with wet forget is easy as you can apply it with your feet firmly planted on the ground.
If you have algae that s leaving dark stains on your roof clean it easily with wet forget hose end.
Wet algae can be slippery even more so than just a wet roof.
The most effective method of cleaning algae and moss from a roof is with a 50 50 mix of laundry strength liquid chlorine bleach and water.
Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water.
If your household water pressure isn t enough to generate the proper nozzle pressure at the jets the manufacturer recommends boosting it.
This article explains methods for cleaning off and preventing future roof stains due to algae or black fungal growth or green algae on roof shingles the effects of these conditions and how to cure or prevent them.
But that would only make sense if the shingles were worn out.
Since starting on a quest for the ideal method of cleaning fungus and algae from roofs i have contacted dozens of individuals and companies.
Roofs that are almost completely covered with mold however will be much harder to clean.
A professional roof cleaning company uses a mixture of chemicals that can be eco friendly.
Getting up on the roof s surface to combat algae and mold growth can be done on your own but can also be extremely dangerous since mold is very slippery and you re dealing with some pretty harsh chemicals.
Some of my readers came forward with suggestions and a few companies also supplied information helpful to this research.
There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor.
Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes and then rinse thoroughly with low pressure water.
After you have your solution into a sprayer and you begin spraying your roof it ll become wet.
You could replace all the roofing with new shingles dark enough to disguise the staining or with shingles laced with copper granules which are lethal to algae.
The jet tip nozzle will reach surfaces up to 30 so you don t need to use a ladder to get onto your roof.
For the purposes of this article the terms mildew fungus algae and moss.