Roof cleaning removes moss, algae, and lichen from asphalt shingles, cedar shakes, and tile roofing. In the Lower Mainland, shaded roof sections and north-facing slopes collect moss quickly because they stay damp for most of the year. Left in place, that moss holds water against the shingles, which can work its way under the roofing material over time.
Sunshine Pressure Washing treats roofs with a soft wash rather than high-pressure blasting. High pressure can strip the protective granules off asphalt shingles and shorten their lifespan, so the crew applies a cleaning solution at low pressure to break down moss and algae, then rinses it away gently. This clears the moss without disturbing the shingle surface underneath.
Roof cleaning matters most in a climate like this one. Metro Vancouver and Langley both see long wet seasons with limited direct sun on many roof slopes, exactly the environment moss needs to take hold. Regular cleaning keeps moss from building up into thick mats that trap moisture against the roof deck. Sunshine Pressure Washing has 125+ five-star Google reviews from customers across the region.
Most roofs in this climate benefit from a cleaning once a year, though heavily shaded roofs or roofs under overhanging trees can develop moss faster and may need attention more often.
Moss holds moisture against the shingles longer than the roof would otherwise stay wet after rain. Over time, that trapped moisture can lift shingle edges and work its way toward the roof deck underneath, so clearing moss early helps avoid that.
No. Roofs get a soft wash: low pressure combined with a cleaning solution that breaks down moss and algae without stripping the granules off asphalt shingles or damaging cedar shakes.
The crew works carefully across the roof surface and adjusts technique based on the roofing material and its condition, since older or more brittle shingles need a gentler approach than newer roofing.
See what a moss-free roof looks like. Get a free quote by phone or through our contact form.