Why roof winter prep works differently in Ajax
Nearly every urgent roof winter prep call we take in Ajax began as something a homeowner noticed months earlier and reasonably decided to watch.
Older Ajax 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.
Many Ajax properties were re-roofed at least once without the flashing being re-detailed, leaving a cosmetic seal doing structural work.
Across West Ajax, Riverside Ajax, Northwest Ajax, Ajax Waterfront and South Ajax, 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 winter prep 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.

