Roof moss removal · Nanaimo
Get the moss off your roof, and keep it off.
Hand removal, a roofer’s inspection while we’re up there, and a treatment that keeps runoff out of the storm drains. Nanaimo and area.
Now booking. Tell us about your roof and we’ll email you a time.
Nanaimo, Lantzville, Cedar and the surrounding area.
Why Nanaimo roofs grow it
Moss does not digest roofing. What it does is trap moisture and debris against the surface and hold it there, so the assembly underneath stays wet for longer than it was designed to. On a shingle roof it also lifts the courses and lets water travel where it should not.
Moss needs shade and moisture, and this coast supplies both for months at a time. Nanaimo takes roughly 1,165 mm of rain a year and a great many lots have mature conifers over them, so north and east slopes can go most of the winter without drying out properly.
That is why the same roof can be clear on one plane and carpeted on another. It is an exposure problem rather than a sign that the roof has failed.
How we do it
In this order, and slowly. The fast version is the one that costs you a roof.
01
Manual removal
The bulk comes off by hand and with soft tools, working down the slope. It is slower than blasting it and it is the only version that does not drive water under the courses.
02
Treatment
A treatment is applied to what remains, so the regrowth is slower. We will tell you what we are using and what it needs in terms of weather.
03
Runoff controlled
Downpipes are managed so runoff does not go straight into a storm drain, and treatment is kept away from drains, ponds and planting. This is a normal part of the job rather than an extra.
How we protect the roof while we do it
Moss comes off by hand and with soft tools, never by pressure washing a shingle roof. Pressure stripping takes the granules with it and drives water up under the courses, which costs you years of roof to gain one tidy season.
Treatment then slows the regrowth. On a shaded, wet slope moss does come back, so the useful measure is how long the reset lasts — and that depends on your trees and your exposure.
The part that actually fixes it
Moss is a symptom of shade and moisture. If branches are sitting over the roof, cutting them back changes the conditions in a way no treatment can.
And if the roof is old enough that the moss has been holding water against it for years, the honest answer may be that cleaning it is money spent on something near the end of its life. We will say so if that is what we find.
Moss questions.
Tell us about your project and we’ll email you to book.
Send the address, which slopes have the moss and roughly how old the roof is.