The local factors behind smoke chamber parging in Scugog
Ask any technician who works Scugog routes and they will tell you the same thing: the callbacks cluster in a handful of predictable places.
Many Scugog properties were re-roofed at least once without the flashing being re-detailed, leaving a cosmetic seal doing structural work.
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.
Across Greenbank, Caesarea, Manchester, Nestleton and Prince Albert, 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 smoke chamber parging 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.