Roof cleaning
A low-pressure soft wash removes algae, moss, lichen and the dark streaks they leave, without blasting granules off the shingles.
Illustration
Before and after a soft wash
Drag the handle. Same roof, same day: algae and moss off, granules still on.
BeforeAfterIllustration
Why clean before preserving
NANOROOF has to reach the shingle to penetrate and bond. Algae, moss and grime sit in the way, and they keep feeding on the roof underneath a treatment applied over them.
So every preservation job is washed first and allowed to dry, then baseline moisture readings are recorded before spraying.
Why soft wash, not pressure wash
High pressure strips granules, which is the damage preservation is meant to prevent. A soft wash uses cleaner and low pressure instead.
What's removed
- Algae: the black streaks on north-facing slopes
- Moss: which holds water against the shingle
- Lichen: which grips granules and pulls them loose
- Debris: leaves and grime in valleys and gutters
Plants and landscaping are protected during the wash. The cleaner used is roof cleaner.
How the soft wash works
- ProtectPlants, landscaping and gutters are wetted and protected before anything touches the roof.
- Applyroof cleaner goes on at low pressure, slope by slope, from the top down.
- Dwell and rinseThe cleaner works on the growth, then a gentle rinse carries it off. No blasting.
- Dry and recordThe roof dries, photos of every slope go into the Roof Record, and it’s ready for the next step.
Soft wash vs. pressure wash
| Question | Pressure washing | Soft wash |
|---|---|---|
| How it cleans | Force of the water | Cleaner does the work; low pressure rinses |
| Granules | Can be stripped off | Stay on the shingle |
| Algae roots | Often left behind | Treated, not just knocked loose |
| Ready for preservation | Surface damaged first | Clean and intact |