Damp conditions promote algae and mildew on roofs and siding. The dark streaks on roofs are often the result of bacteria feeding on limestone, increasing wear and increasing cooling costs. Heavy rains and freeze-thaw cycles further stress materials. Westerville House Washing Services Organic growth such as algae, moss, and mildew stain surfaces and retain moisture. Rust marks concrete and brick. …
House Washing for Two Story Homes Westerville








