The high pressure power washing method leaves root systems behind so the algae.
Roof stains away.
While the bleach mixture will kill the algae and lighten the stain it will take time to fade away and algae growth will come back over time if preventative measures aren t taken.
Algae tree sap and leaves moss and many other materials get dropped or blown onto your roof.
We recognize that all roof situations are not the same.
Work your way from top to bottom and avoid standing on the wet areas.
Roof be clean stain away is a revolutionary patent pending product with a dual action formula that cleans roof stains away and provides a shield to prevent future staining and moss lichen growth.
Let the solution soak for 15 minutes before rinsing it away with a garden hose.
Not only is this method damaging to shingles but it s also not an effective way to remove organisms that cause roof stains.
Check out the photo of the cleaned roof in our article on how to remove and prevent black algae stains to see how my roof looked after i cleaned a section of it.
Can t think of any.
Roof discoloration stain diagnosis cure prevention advice for trimming trees away from buildings.
Some roof cleaning contractors use high pressure power washing methods to attempt to remove roof stains.
These substances can infiltrate the limestone mixture that attaches the shingle to the roof and end up harming its ability to repel water.
Once you re established in your position on the rooftop just spray away at the roof stains until the entire surface is coated with it.
Roof stains are not only unappealing to look at they also compromise the waterproofing ability of your shingles.