Why roof moss & algae treatment works differently in Orangeville
Orangeville sits in a freeze-thaw belt, and freeze-thaw is what quietly takes apart masonry, flashing and venting.
Air-sealing and window upgrades have made Orangeville homes far tighter than they were designed to be, and a tight house starves a natural-draft appliance of the make-up air it needs.
Infill and renovation work in Orangeville 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 Orangeville East, Broadway, Downtown Orangeville, Credit Meadows and Century, 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.