PW McCallum Roofing

roofing contractor located in beautiful Shawnigan Lake BC  

Moss on my roof! Is it a problem? The answer is most often yes, moss roots itself into the granules i.e. rocks on asphalt roofing. The environment on Vancouver Island is optimum for the growth of moss and algae and molds.  On roofs that we have installed in Victoria and Duncan B.C. we have found the moss will start growing within 10 years on A.R. Roofs.)   A.R. Roofs are algae resistant roofs, some people refer to these shingles as moss proof. This however is untrue as there is over a thousand species of moss no manufacture can claim they can stop moss.  A.R. “resistant” please read more at

Posted 137 weeks ago

2116 Renfrew Rd Shawnigan Lake B.C. V0R 2W1

1724 Leighton Rd Victoria B.C. V8R 1M8

246 2 St Duncan B.C. V9L 1R6

309 Benhomer Drive Colwood B.C. V9C 2C7

246 2 St Duncan B.C. V9L 1R6