The Roof Cleaning Institute Of America Training & Certification Forum
"Find A Certified Roof Cleaner Directory"

On a number of roof cleaning sites lately I have seen the following information included.

Roof Cleaning Facts

50% of roofs were replaced for appearance, but could have easily been cleaned.

90% of home owners didn't know Roof Stains CAN be cleaned.

Roof Stains trap attic heat and increase cooling costs up to 20%.

Roof Mold and Roof Algae spread down the roof, and can contribute to
indoor mold and allergy problems

Does anyone now "exactly" where in information originated.  Recently a guest posted a question about starting roof cleaning as part of his roofing company. If he was doing the first fact, it definetly would effect his roofing business.