Toronto’s housing stock is a mixed bag — century homes in the east end, post-war bungalows in Scarborough and Etobicoke, semis with shared walls, additions bolted onto original framing decades later. A lot of that stock was built before modern air-sealing standards existed. That mismatch shows up as the same three complaints, year after year: rooms that never quite warm up, hydro and gas bills that climb every winter, and drafts that no amount of thermostat adjusting seems to fix. Traditional batt or blown-in insulation slows heat transfer, but it…
Read MoreWhy Spray Foam Insulation Keeps Coming Up in Toronto Renovation Conversations
