RoofGlo, Division of Boost Exteriors Incorporated

Roof cleaning is an important maintenance step that helps prolong the roof's lifespan, prevent pest problems, and preserve your roof's appearance. There are two primary cleaning methods: pressure washing and soft washing. Pressure washing uses no chemicals but can damage asphalt shingles, so some homeowner prefer soft washing with chemicals to kill moss, lichens, algae, and more. However, chemical washing should only be done by professionals to ensure runoff doesn't harm plants and wildlife.