This is what happens if you choose to not have your roof tiles cleaned and sealed.
The moss, mould and algae hold the water and when it freezes during winter months the Ice expands by 10% causing micro fractures that open up more and more each year until the roof becomes too damaged to pressure wash and the only option is a new roof. Pressure washing roof tiles by FUTURE pressure washing roof tiles will not only make your home look better but it will protect it from future damage for up 10 years after cleaning.
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