Garage spray foam insulation in Didsbury is mostly work on detached buildings at the back of the lot rather than the attached garages found in newer subdivisions, and that changes almost every part of the conversation.
Detached, at the back, off the lane
The older parts of this town were laid out with lanes, so the garage sits at the rear of the lot as its own building. It shares no wall with the house, which removes one whole set of problems and introduces another: nothing about it is heated by accident, so whatever it is going to be, it has to become on its own. A detached garage in Didsbury starts from genuinely cold and every degree in it has to be paid for deliberately.
Deciding whether it is heated, or simply not freezing
This is the question to settle before anything is priced, and the two answers cost very different amounts. A building that only has to stay above freezing so that stored liquids, tools and a vehicle are protected needs a sealed shell and very little input. A building that has to be comfortable to work in for hours in January needs the shell plus a real heat source and the running cost that comes with it. Most owners here want the first and get quoted the second.
An older detached garage has nothing in it anywhere
Expect to find bare studs, board sheathing, an uninsulated roof and a slab poured straight onto ground with no edge insulation. That is normal for the age and it means the work is a whole envelope rather than a top-up. It also means it can be staged sensibly: the roof plane and the walls together make the largest difference, the slab edge is a smaller gain, and a properly sealed overhead door is frequently the thing that undoes everything else if it is ignored.
The door is the largest single surface, and the foam gets covered
On most of these the overhead door is the biggest uninsulated area in the building and no amount of work elsewhere compensates for it, so it belongs in the plan from the start. The applied foam also does not stay exposed: a Didsbury garage used as a workshop or as living space needs a thermal barrier over it, and where a building has been attached to the house at some point the shared wall is a required separation as well as an air barrier. Both get quoted as part of the job rather than raised afterwards. More on thermal barrier vs ignition barrier.
Garage Spray Foam Insulation Didsbury: Common Questions
It is detached, is that harder? Different rather than harder. Nothing warms it accidentally, so the shell has to do all of it.
Do we need to heat it? Decide that first. Staying above freezing and being comfortable to work in are different jobs.
What about the overhead door? It is the largest single surface. Sealing and insulating it belongs in the plan.
Size the assembly with the R-value calculator, then get a free Didsbury quote. More on Garage Spray Foam Insulation Alberta.