The local factors behind roof moss & algae treatment in New Tecumseth
Two houses on the same New Tecumseth street, built the same year, can need completely different roof moss & algae treatment work — and usually do.
Range hoods and basement bathroom fans routinely out-pull an older flue, so the house depressurises and the flue reverses — a New Tecumseth problem that looks like a chimney fault but starts elsewhere in the building.
Older New Tecumseth stock was built when soft lime mortar and clay liners were the standard; modern high-efficiency appliances vent very differently, and the mismatch causes condensation the original builder never planned for.
Across Briar Hill, Tottenham, Tecumseth Pines, Rosemont and Ballycroy, 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.