Although not an hse approved cleaning method steam offers several advantages over the use of closed box pressure washing for cleaning asbestos roofs.
How to clean moss off asbestos roof.
After all moss is removed paint entire roof with an acrylic based waterproofing paint to seal roof.
When proper precautions are taken to reduce the chance of workers stepping off safety platforms and contamination prevention methods are in place steam is very useful.
Cleaning asphalt shingles of clumps of moss or algae that have taken root in the roof can feel like an overwhelming endeavor.
What you don t hear about though is the damage that bleach can do and the long term effects of using bleach to remove moss from your roof.
The roof has considerable moss growing on it and because my house is pebble dashed there are lots of stone pebbles scattered along the roof edging.
Firstly spray the roof with moss killer.
So will detergent another common moss removal myth.
Once the moss has been thoroughly eradicated from the roof take steps to keep moss from returning.
Most roof cleaning products require at least 20 minutes for it to absorb into the moss.
The roof has started to leak in a few places mainly where the roof butts up against the main wall of the house.
Its recommended anyone cleaning moss off a roof should do it on a cloudy day.
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.
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.
Scrape off the moss.
I have an asbestos corrugated garage roof approximately 2 4m by 6 5m.
Then after a couple of days use stiff broom to remove all dead 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.
When applying roof cleaning products onto a roof on a hot sunny day it will quickly evaporate and you won t get the desired result.
There are many ways to remove moss that tends to grow in shaded areas.