Short answer: for the right application in Alberta's climate, yes - spray foam usually costs more up front than batt or blown-in, and the air-seal returns that premium through lower bills and fewer moisture problems over a long heating season. But 'worth it' depends on where you use it.
Where it's clearly worth it
- Basements and rim joists - the leaks and condensation it stops are expensive to ignore.
- Metal buildings, crawlspaces, below-grade - moisture control alone justifies it.
- Any air-sealing job in a cold, windy climate where infiltration is the real loss.
Where it's a judgment call
- Big open attics on a tight budget - blown-in over a foam air-seal (the hybrid) may give most of the benefit for less.
- Interior walls where sound, not moisture, is the goal - open-cell, and the ROI is comfort more than dollars.
The honest math
Spray foam's return isn't a rebate - it's the heat you stop wasting, starting the day it's installed, every winter it's in the wall. Over Alberta's long cold season, that compounds. Estimate your job and get a quote.