Tile Roof vs. Shingle Roof: Does the Cleaning Method Really Differ?

Yes, considerably. Both tile and asphalt shingle roofs should be soft washed rather than pressure washed, but tile can tolerate more careful pressure than shingle, while shingle roofs are more easily damaged by high pressure specifically because of their granule layer.

Quick Facts

• Asphalt shingle: soft wash only, high pressure strips protective granules
• Clay or concrete tile: soft wash preferred, though tile is more pressure-tolerant than shingle
• Shared risk: both can trap moisture underneath if cleaned carelessly
• Typical cleaning interval: asphalt shingle roughly every 18-24 months, tile can often go longer
• The one thing that never changes: never high-pressure wash either roof type

Why is asphalt shingle more sensitive than tile?

Asphalt shingles are coated with small protective granules that shield the shingle material from UV exposure. High pressure can dislodge those granules, and once they’re gone, the shingle underneath is exposed to sun damage it was never designed to handle on its own. Tile doesn’t have this specific vulnerability, since the material itself is the exposed surface, but tile carries its own risk: cracking or shifting individual tiles if pressure or foot placement isn’t handled carefully during the job.

Does that mean tile can be pressure washed safely?

Not in the way most people mean by pressure washing. Tile can generally tolerate more force than shingle without granule loss, but high pressure can still crack tiles, force water beneath them where it shouldn’t go, or shift tiles out of alignment. Soft washing remains the standard, safer approach for tile roofs too, even though the specific failure mode is different from shingle.

Does the algae itself behave differently on tile versus shingle?

The same Gloeocapsa Magma algae responsible for black streaking on Brandon roofs grows on both surfaces, but it tends to be more visually dramatic on shingle roofs since it feeds directly on the limestone filler in the shingle material. On tile, staining is more surface-level, which is part of why tile roofs can sometimes go longer between cleanings without looking as visibly affected.

Does cleaning frequency actually differ between the two?

Generally yes. Asphalt shingle roofs commonly need attention every 18 to 24 months to stay ahead of algae feeding on the shingle material itself, while tile roofs can often go longer between cleanings since the algae isn’t actively degrading the material the same way. Shade, tree cover, and how humid a specific property’s location is will move these numbers in either direction regardless of roof type.

Frequently Asked Questions

Will you use the same PSI on a tile roof as a shingle roof?

No. We adjust pressure and technique based on the specific roof type and its condition, not a single default setting applied to every job.

Can high pressure void my roof warranty?

It can, since most manufacturers require soft washing rather than high pressure to keep a shingle or tile warranty intact. This is one of the more overlooked reasons to avoid a rental pressure washer on a roof.

Does metal roofing follow the same rule?

Yes, metal roofs should also be soft washed rather than pressure washed, since high pressure risks damaging protective coatings and finishes.

How do I know which roof type I have if I’m not sure?

Tile is a distinct, individually-placed material with a visible profile, while asphalt shingle is layered and flatter. If you’re unsure, send us a photo and we’ll confirm before quoting the job.

Ready for a roof that looks new again? Call Elite Pressure Washing Brandon at +1 (656) 253-1990 for a free soft-wash quote — we clean tile, shingle and metal roofs across Brandon, Tampa and the surrounding areas.