Pole barn spray foam insulation in Edmonton deals with the building type that dominates acreage and farm construction around this city. Post-frame goes up quickly, spans a long way and costs less than a stud-framed building of the same size, which is why so much of what surrounds Edmonton is built that way.
Post-frame is the regional default for a reason
Because it is the default, most owners here have one and most have never been told how it differs from a house. The load runs through posts rather than a wall, the girts span between them, and the cladding is screwed to the girts. There is no cavity, no sheathing in the sense a house has one, and nothing continuous to seal against. Every insulation decision follows from that.
What the cladding is fixed to
The steel is fastened to the girts, and every one of those fasteners passes through the skin. In a building with a temperature difference across it, each fastener is a small cold point and each lap between panels is a small opening. Individually they are trivial; across a large building there are thousands of them, and together they are the reason a pole barn feels draughty even where the walls are notionally insulated. Foam applied continuously across the inside face seals them as it covers them.
Deep frost at the base of the post
The posts go into the ground, which means the bottom of the wall is in contact with soil that freezes hard and stays frozen for months around Edmonton. The detail where the wall meets grade is therefore both a heat path and the place where any ground moisture arrives, and it is the most commonly skipped part of these buildings. It is worth naming in a scope rather than assuming.
Do it before the interior is finished
If there is any intention of lining the building, the sequence matters. Foam goes on before the interior finish and after any wiring, plumbing or mounting points are located, because anything driven through the foam afterwards breaks the seal and puts a cold point behind it. On a building that will be finished in stages over years, it is still worth doing the shell in one pass.
Pole Barn Spray Foam Insulation Edmonton: Common Questions
Why does my pole barn feel draughty when it has insulation in it? Because the insulation is not sealed. Air moves around it through the laps and fastener penetrations in the cladding, and it carries away much of what the insulation is holding.
What about where the wall meets the ground? That detail matters more here than most people expect, because the soil around Edmonton freezes deep and stays frozen. It is worth naming in the scope.
Should it be done before I line the inside? Yes, and after wiring and mounting points are placed. Fasteners driven through foam afterwards break the seal.
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