Roof With Stains

The second method is to spray on a coating of stain blocking solution defy stain blocker for roofs is one product but there are other brands as well a stain blocking product can buy you up to three years of protection from algae.
Roof with stains. Allow the oxy bleach mixture to sit on the shingles for about 15 minutes. If you decide to try it apply it shortly after you ve cleaned the roof. Read on to find out how to remove them. Spray the roof with the diluted substance and let it sit for about an hour.
If your roof is older or in bad shape and needs replaced anyway you may want to invest in these copper infused shingles. Use a garden hose to rinse the stains and cleaning solution from the roof. Sometimes you may find that there s a very stubborn stain on your roof that is caused by heavy fungus growth. While doing little harm to your shingles the black streaks caused by the algae are unsightly.
Then use a soft bristled scrub brush to remove the stain from the roof itself and rinse with clean water. Set the garden hose on the spray setting with the highest pressure water and hold the nozzle close to the shingles when rinsing. Replacing the shingles on your roof just because you have black stains is not necessary however and you should be suspicious of any roofer that suggests roof shingle replacement as the only solution to your algae problem. If stains on the roof are hard to remove homeowners and industrial commercial builders should hire a professional roofer to clean the roofs.
This will remove any stains that were loosed up by the oxygen bleach. Reply rachel frampton march 4 2020 at 11 52 pm.