Bleach On Asphalt Roof

Algae mold mildew moss and dirt are often attracted to shingles.

Bleach on asphalt roof.

The reason you shouldn t use bleach to remove moss from your roof has to do with the composition of your shingles. I have some roof shingle mold mildew and was going to try jay j s suggestion of 1 cup bleach to 1 gallon water but was concerned that the bleach would damage the asphalt aspect of the shingles. Chlorine bleach tsp chemical combination can kill plants and the phosphates hurt the environment. Chlorine bleach also dries out a shingle roof causing curling and ultimately shortening asphalt roof shingles life.

Roof shingles can become dirty and stained over time. It can lighten the color of your roof and bleach anything the overspray contacts. 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. Follow these three straightforward steps to clean off all.

Bleach runoff may void your termite warranty roof cleaner qse does not contain bleach or chlorine chemicals. Plus chlorine bleach is a corrosive agent that can damage metal roof flashings gutters and downspouts. A solution of equal parts bleach and water safely cleans asphalt shingles according to the asphalt roofing manufacturers association. What bleach does to your roof.

Remove moss from the roof a layer of green moss might look cozy and rustic atop your house but it can be bad news for your roof. Chlorine bleach tsp chemical combination can kill plants and the phosphates hurt the environment. And the runoff harms plants. Chlorine bleach also dries out a shingle roof causing curling and ultimately shortening asphalt roof shingles life.

Your shingles are made of a fiberglass mat that is covered with protective oils tar and asphalt. Bleach runoff may void your termite warranty roof cleaner qse does not contain bleach or chlorine chemicals. 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. It is this very oil tar and asphalt which protect your shingles from the elements.

Ignore your landscape and surrounding areas which can be harmed by the bleach solution. But here s the kicker. After spraying the roof with the mixture allow it to sit on the surface for 15 to 20 minutes before rinsing thoroughly with clean water. Bleach can effectively clean roof shingles and remove even the toughest stains.

Bleach may kill the top layer of algae and lighten the stains but it doesn t kill the underlying.