Roof Cleaning for Older Asphalt Shingles: Safe Methods
Roof cleaning for older asphalt shingles should use a low-impact chemical treatment, not pressure washing or aggressive scraping. First inspect granule loss, cracking, exposed fiberglass, loose tabs, and roof age; if the shingles are failing, cleaning can worsen damage and replacement is safer. For sound but stained shingles, controlled biocide application, runoff protection, and minimal […]