How To Clean Moss Off Asbestos Roof

Apply liquid cleaners with a hand pump sprayer or with a pressure washer on the lowest setting so as not to cause any damage to the shingles.

How to clean moss off asbestos roof.

Firstly spray the roof with moss killer. This is the only method approved by the hse in england and wales and involves using an industrial scale patio cleaning type attachment with a suitable pressure washer. The first stage to cleaning should therefore be to wet down the roof and scrape off any weed or moss growth which should be placed into designated asbestos waste bags. A homemade cleaner of one part liquid chlorine bleach to one part of water can also be effective in removing and killing moss that clings to the roof tiles.

Then after a couple of days use stiff broom to remove all dead moss. First power wash the roof to get rid of all the moss. Use the tool to gently lift away matted moss that has gathered on the flat sections of the shingles. The waste must be considered to be contaminated and therefore should be disposed of by a licensed disposal contractor and a consignment note issued and filed for the health and safety file.

The cleaning head is lowered down the roof sheets from the ridge and a swirling pressurised jet of water cleans the roof surface as it goes. In the seams use the sharp edge of the scraper like a dental pick to force out the moss. 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.