How Do You Clean Asphalt Roof Shingles

Apply the cleaning agent to.

How do you clean asphalt roof shingles. Though often attributed to an accumulation of dirt defective shingles mold or mildew the most common culprit is actually a blue green algae known as gloeocapsa magma that is spread by airborne spores. Allow the solution to soak into the shingles for at least 15 minutes. Starting from the bottom. Of laundry strength liquid chlorine bleach and water.

Mix your cleaning solution. Next rinse the shingles thoroughly with a garden hose at low pressure. Getting shingles clean 1. While specialized eco friendly roof cleaners are available they are a little more.

How to clean roof shingles. Here s how to clean the. A pressure washer can eradicate the moss from the deep crevices and prevent it from returning next season. If they are severely molded you may want to give it a little longer.

Cleaning moss and algae 1. You cannot effectively clean asphalt shingles with just soap and water. A mixture of trisodium phosphate tsp bleach and water will also remove stains. Choose your cleaning agent.

Oxygen bleach lightens stains as well and is less harmful to the environment but it doesn t produce as immediate or dramatic an effect as chlorine bleach. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. Soak the shingles with water. Bring your garden hose or water sprayer up to the roof.

Fill a low pressure agricultural sprayer or a pump up garden sprayer. Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water. Do shingles on your north west or other shaded roofs have streaky moldy stains. Spray the cleaner on a section of roof and let it sit for about 15 minutes.

Black streaks on the north and west facing and shaded. Pour the cleaning agent into a spraying device. Use a pressure washer which can loosen shingles and seriously damage your roof. Scrub the wet section of the roof.

Mix the hot water bleach and detergent in the bucket until the soap. Make your shingles last longer. Mix the hot water bleach and detergent and pour into the garden sprayer. Start from the top shingle and rinse downward to prevent water seepage.

Spray your cleaning solution. For large expanses of an asphalt shingled roof use a long handled scrub brush made for cleaning gutters and roofs.