If any Alberta city was built to be retrofitted, it's Medicine Hat. Six in ten homes predate 1991, much of it constructed in the era of cheap local gas when air-sealing wasn't a priority. Those homes are comfortable to fix and expensive to ignore - and spray foam is the tool, because it seals the decades-old leaks and insulates in one pass.
Where the Hat's homes lose heat
- Basements - older below-grade walls that never had proper insulation or vapour control; closed-cell fixes both.
- Rim joists - the leakiest band, ubiquitous in the pre-1991 core around Crescent Heights and Ross Glen.
- Attics and additions - decades of settled or missing insulation.
Why now
The old economics ('gas is cheap, who cares') are gone. Every leak in an older Medicine Hat home is now a real cost every winter, which is exactly why the retrofit payback here is among the best in Alberta. Newer areas like Southlands and Saamis Heights benefit at the rooflines and bonus rooms.
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