Why Not Power Wash?

Power washing can be extremely detrimental to a roof. Power washing will remove the aggregate from the roofing shingles and most likely void any warranty you may have. Aggregate are the granules that physically protect the layers of asphalt and shield them from ultraviolet (UV) radiation. Aggregate not only protects the roofing surface. It also provides another layer of insulation, as well as reflectivity. Power washing a roof can take years off of its life span.