# Algae & Moss Shingle Cleaning Boise ID | Soft Wash | Shingle Roofing Boise

> Soft-wash algae, moss, and lichen removal for Boise shingle roofs — north-facing and tree-shaded slopes hold moisture longest and show dark streaking and moss growth first, and pressure washing strips the granules that protect the shingle underneath.

URL: https://shingleroofingboise.com/algae-moss-shingle-roof-cleaning-boise/

## Price

$300-$800 typical soft-wash cleaning job (whole roof). directional range for a professional soft-wash algae/moss treatment, varies with roof size and severity.

## What's included

- Roof inspection identifying algae streaking, moss growth, and lichen versus other staining
- Soft-wash treatment using low-pressure application and a roof-safe cleaning solution
- Manual removal of moss clumps at valleys, ridges, and shaded slopes before chemical treatment
- Rinse and neutralization of the cleaning solution to protect landscaping and gutters below
- Gutter flush to clear moss and debris washed down during the cleaning
- Inspection of shingle mat condition underneath removed moss, since trapped moisture degrades shingles fastest there
- A recommendation on zinc or copper ridge strips to slow algae and moss regrowth
- Before-and-after photos of the treated slopes

## Process

01. **Inspect & scope** - Identify which slopes have algae streaking, moss, or lichen, and how heavy the growth is before choosing a treatment approach.
02. **Manual moss removal** - Hand-clear heavy moss clumps at valleys and the ridge before any chemical treatment goes down — moss traps water against the shingle even after cleaning.
03. **Soft-wash application** - Low-pressure application of a roof-safe cleaning solution — no pressure washing, which strips the granules that protect the shingle.
04. **Rinse & inspect** - Neutralize and rinse the solution, flush the gutters of loosened debris, and check shingle condition where moss had been sitting.

## When it's needed

- Dark streaking running down north-facing or tree-shaded slopes
- Green moss buildup in valleys or along the ridge line
- Lichen — crusty gray-green patches — showing up on older shingles
- Granule loss concentrated specifically under moss patches
- Gutters filling with moss and debris after rain
- Certain areas of the roof staying visibly damp longer than the rest
- Neighboring roofs on the same street showing similar staining or moss patterns

## FAQ

**Will pressure washing damage my shingles? Why do you use soft-wash instead?**

Pressure washing blasts off the granules that shield the asphalt mat from UV damage — once those are gone, they don't come back, and the shingle ages faster. Soft-wash uses low pressure and a cleaning solution to kill algae and moss without stripping the surface.

**Those black streaks — is that mold, or something else?**

It's usually Gloeocapsa magma, a blue-green algae that feeds on the limestone filler in shingle granules, not mold. It's cosmetic on its own but signals a roof that stays damp longer than it should, which is worth checking.

**How often does a shingle roof need algae or moss cleaning in Boise?**

Depends heavily on shade and slope orientation — a sunny south-facing roof may never need it, while a tree-shaded north slope might need cleaning every 2-4 years. We'll tell you what your specific roof actually needs during inspection.

**Will cleaning make my roof look new again, or is staining permanent once it sets in?**

Most algae streaking and moss come off fully with soft-wash treatment. Deep-set lichen or long-term staining on older, weathered shingles may lighten but not fully disappear — we'll set expectations before starting, not after.