Clean shingles on a cool humid overcast day to ensure that the cleaner doesn t dry too fast on the roof.
How do you clean asphalt roof shingles.
Sunlight and warm weather will ensure the cleaning solution dries too fast to be of any use.
A pressure washer can eradicate the moss from the deep crevices and prevent it from returning next season.
Pour the mixture into the garden sprayer.
Wash the solution off the roof with your garden hose fitted with the sprayer.
Every wonder what causes those ugly black streaks and stains on your roof.
Your best method to rinse is to use a good spray nozzle with a wide fan spray pattern but still with some force behind it.
In addition choose a day with little wind so that when you spray the solution it stays on your roof 1 x research sourcestep 2 perform maintenance on your roof.
Video on how to clean softwash an asphalt shingle roof including where to find.
Spray the solution over the entire surface of the roof and let it sit until stains begin to fade and become brownish.
Start from the top shingle and rinse downward to prevent water seepage.
You will be able to rinse away the moss algae and pollen.
The day you perform deep cleaning on the shingles should be cool and overcast.
For large expanses of an asphalt shingled roof use a long handled scrub brush made for cleaning gutters and roofs.
Spray it across the shingles you wish to clean wait about 20 minutes then rinse them with water.
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.
Allow the solution to soak into the shingles for at least 15 minutes.
Mix the hot water bleach and detergent and pour into the garden sprayer.
To stay safe suit up in long sleeves pants and safety goggles.
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.
On the shingles you can let dwell for 10 15 minutes.
Before you begin it s important to repair loose shingles and flashings to minimize roof damage.
Step 1 choose a cool and overcast day.
You don t want to scrub with a brush on your shingles as you are likely to rub off granules.
Cleaning asphalt shingles is an important part of protecting your roof.
Mix the hot water bleach and detergent in the bucket until the soap granules dissolve.