Asphalt shingles, tile, metal and membrane roofs have different care limits. Check the roof documentation and ask the contractor to identify the material, explain the proposed process and confirm it will not conflict with manufacturer guidance or a warranty.
Identify the roof before choosing a method
Asphalt shingles, tile, metal and membrane roofs have different care limits. Check the roof documentation and ask the contractor to identify the material, explain the proposed process and confirm it will not conflict with manufacturer guidance or a warranty.
Protect people, plants and drainage
A roof assessment should include access, fragile areas, gutters, downspouts, landscaping and where rinse water will go. Ask what will be covered, how runoff will be managed and what happens if weather changes. Do not climb a steep or wet roof without proper training and fall protection.
Compare a written scope
A useful quote names the roof areas, method, preparation, exclusions, expected timeline and price basis. Be cautious of promises that every stain will disappear or that one treatment fits every roof.
Utah weather note
Avoid roof work when surfaces are icy, wind is unsafe or temperatures fall outside product requirements. In the Salt Lake Valley, seasonal freeze and thaw make it especially useful to inspect drainage and visible damage before scheduling cleaning.
Common questions
Is pressure washing safe for asphalt shingles?
High-pressure washing can dislodge granules and damage shingles. Ask a qualified roof cleaner about a material-appropriate low-pressure process and verify the roof maker’s care instructions.
Will roof cleaning repair a leak?
No. Cleaning is not a repair. Have a roofer inspect leaks, loose materials or suspected structural damage before any cleaning work.