Roof moss removal preserves the waterproofness of the roof and limits infiltration in the event of bad weather. By retaining rainwater, mosses and lichens end up making the tiles porous. This residual moisture can even cause cracks or bursts in the event of frost.
How much does it cost to clean house roof UK?
The cost of pressure washing a terraced house is between £550 and £700, with it increasing to £750 to £900 for a semi-detached home. Detached homes can command fees of £900 to £1,000 for an average-sized property, with a large, detached home costing more than £1,100.
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