Why roof moss & algae treatment works differently in Kawartha Lakes
Kawartha Lakes sits in a freeze-thaw belt, and freeze-thaw is what quietly takes apart masonry, flashing and venting.
The swing between a January cold snap and a February thaw can move a masonry assembly enough to open joints that looked sound in the fall.
Infill and renovation work in Kawartha Lakes frequently reroutes venting without re-sizing it, and undersized or over-long runs are the single most common cause of poor draft we see.
Across Sturgeon Point, Bethany, Kirkfield, Bobcaygeon and Little Britain, the housing stock changes street by street, and the correct method changes with it. A century home with a soft-brick stack does not get the same treatment as a 2010 build with a factory-built vent — using one method on both is how systems get damaged.
the practical takeaway is that a roof moss & algae treatment visit should start with an assessment, not a tool. Any crew that begins work before telling you what they found is guessing on your behalf.