Inspect the roof for damage, loose shingles, and leaks before cleaning
Check the manufacturer’s cleaning guidelines for your shingle type
Choose a cool, dry day with no rain or strong wind
Protect gutters, plants, and surrounding surfaces with tarps or plastic sheeting
Use a soft-bristle brush or low-pressure rinse to remove loose debris
Mix a roof-safe cleaning solution according to the product instructions
Apply the cleaner from the bottom up to reduce streaking
Let the solution sit for the recommended time
Gently scrub stained areas with a soft brush
Rinse thoroughly with low pressure
Remove moss, algae, and lichen carefully without scraping shingles
Avoid pressure washing, bleach-heavy mixes, and abrasive tools
Wear non-slip shoes, gloves, and eye protection
Use a stable ladder and follow roof safety precautions
Rinse nearby plants and gutters after cleaning
Install zinc or copper strips if algae growth is a recurring problem
Trim overhanging branches to reduce shade and moisture buildup
Schedule regular roof inspections and light cleanings to prevent buildup