Pole barn spray foam insulation in Carstairs is sprayed across the inside face of a post-frame building, over the posts, the girts and the cladding together, because a post-frame wall has no cavity for anything to be fitted into. Most of these are now used as weekend shops rather than as farm buildings.
A building that gets four hours of use and then goes cold again
The duty here is short and intense: somebody comes out on a Saturday morning, turns the heat on, and wants to be able to work in a reasonable time. That is a recovery problem rather than a heat-loss one, and on a post-frame shell it is dominated by air moving through the laps and the closures rather than by the depth of anything. It is also why owners who add a bigger heater are usually disappointed. The heater was never the limit; the building was emptying as fast as it filled.
What the previous use left in the building
Almost all of these were working buildings before they were shops, and they carry the evidence. Dust that has been settling for thirty years on the inside of the cladding, old fixings and brackets at odd heights, patches where something was let into the wall, and frequently a floor that is part concrete and part gravel because only half of it was ever poured. Every one of those affects the work: foam bonds to a clean dry surface and to nothing else, so the preparation on a converted building is a real line rather than a formality, and it is the one most often missing from a cheap quote.
Deciding how much of it to bring inside the envelope
Almost nobody needs the whole building. A Carstairs shop of this kind is typically two or three bays, of which one is where the bench and the vehicle go and the rest is storage. Treating that bay and building a proper sealed partition is a fraction of the cost and produces a space that comes up to temperature quickly, which is the entire point on a four-hour session. What has to be understood is that the partition becomes an exterior wall, so it is built and sealed like one rather than being a divider with insulation in it.
What to settle before anything gets sprayed
Three things, and all of them are cheaper decided than discovered. Where the fixings will be, so backing can go on the girts before the layer covers them. Where the heat is coming from and whether it is vented, because a sealed building changes what an unvented heater does to the air in it. And what the building is going to be used for, because a space people work in needs the foam covered and that belongs in the price rather than arriving afterwards.
Pole Barn Spray Foam Insulation Carstairs: Common Questions
Why can nothing be put between the girts? A post-frame wall has no cavity. The layer has to be sprayed across the frame itself.
Do we need to do all three bays? Usually not. One bay properly sealed off is the common and much cheaper answer.
Why does the shop take forever to warm up? That is air movement rather than insulation depth, and it is what this work changes.
Size the assembly with the R-value calculator, then get a free Carstairs quote. More on Pole Barn Spray Foam Insulation Alberta.