Green algae is one of the most common exterior problems in the Fraser Valley’s damp climate. Here’s the safest way to deal with it.
Green algae is one of the most common exterior problems in Chilliwack because of the area’s damp climate, shaded lots and moisture that lingers on siding, soffits and fences longer than in drier regions.
The safest and most effective removal method is soft washing — a low-pressure application combined with a cleaning solution that breaks down algae at the surface, rather than trying to blast it off with force. High pressure can drive water behind siding or damage paint, which makes the problem worse rather than better.
Algae on vinyl siding, stucco, soffits, gutters, windows, fences, patios and balconies all responds well to the same soft-wash approach, matched to the specific material.