How To Clean Moss Off Slate Roof

In the seams use the sharp edge of the scraper like a dental pick to force out the moss.

How to clean moss off slate roof.

If you have moss mold or rust spots that are reachable gently scrub them with a medium stiff brush and a solution of 1 4 cup general household cleaner to one gallon of water. Set up a ladder so you can access the roof. A vinyl leaf rake can clean harder to reach spots. Use heavy rubber gloves to scoop up material in areas you can safely reach.

Carefully place a ladder near the area of moss growth and don slip resistant shoes old clothes rubber gloves and eye. Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor. There are many ways to remove moss that tends to grow in shaded areas. Moss can tear through slate shingles with its roots and can promote excess dampness that rots the wood beneath your slate shingles.

Clean slate roofs in hot weather so they dry fast or at least on a clear day with plenty of sunlight. Hose off and brush all moss loose from your roof shingles. Take hold of the soft bristle brush and scrub away any remaining moss. Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.

Run a hose fitted with a spray nozzle up to the roof. Rinse the roof again with the hose to remove any remaining loose moss sitting on the roof. With more severe environmental staining from tree sap and or pollution you may need a pressure washer 3800psi. Point the hose towards the top of the roof and rinse off the moss killing solution along with the dead moss.

We ve heard that a 24 ft extension pole and a 12 5 inch wall washer can work well when attached to a pressure washer.