1 slide a margin trowel under shingles to unstick them from the ones below.
Cleaning moss off shingle roofs.
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.
In the seams use the sharp edge of the scraper like a dental pick to force out the moss.
2 slide sacrificial zinc strip underneath the loosened shingles.
Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye.
While an occasional cleaning might not harm your roof repeated use of harsh chemicals or the erosive effects of pressure washing can damage or shorten the life of asphalt shingles.
Before applying the cleaner spray the roof with water to cool it down.
Of dish soap to help the vinegar cling to the moss and lichens.
Climb up to the roof and begin scraping off dead moss from the shingles using a putty knife or painter s 5 in 1 tool and working from the bottom up.
After 15 to 20 minutes rinse the solution off with a sprayer that has enough force to dislodge algae and moss without damaging the shingles.
Wait about 20 minutes then rinse.
There are several products on the market specifically designed to remove algae stains from roofs such as wet forget outdoor.
For deep stains let the roof dry then reapply the cleaning solution and rinse it off again after no more than 30 minutes.
Then spray the cleaner onto the shingles photo 1.
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.
Work on one small section at a time which allows you better control of the brush and your scrubbing motions.
Have gloves with good grip material on the palms and fingertips to help you keep steady while removing clumps of moss from the asphalt shingles.
That ll prevent the cleaner from drying out too quickly.
To learn how to prevent moss and algae from getting on your shingles keep reading.
In this video this old house general contractor tom silva explains how to remove roof moss and prevent it from coming back.
Pour the mixture into the spray bottle.
Hose off and brush all moss loose from your roof shingles.
Roof moss removal is naturally slippery work.
Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles.
The vinegar should be labeled with its acetic acid strength which shouldn t be more than 5 percent.
Pour distilled white vinegar into a bucket.
Check the ladder feet for defects cracks or corrosion.