Pole barn spray foam insulation in Vermilion is work on post-frame buildings, which are the default new farm building in east-central Alberta because they go up fast on any reasonably level ground without a full foundation. That advantage is also the source of the problem: a post-frame building has no continuous foundation, so the bottom metre of the wall is an improvised assembly, and that is where almost every one of these buildings loses its performance.
The band at the bottom
In a post-frame building the posts are set in the ground or on footings, and the wall girts run between them. At the base there is a skirt board or a splash plank, sometimes a short concrete grade beam, sometimes nothing but a board on dirt. The cladding stops there. Below and behind it is a gap that connects the inside of the building to the outside and, often, to the soil. Air moves through it continuously, snow blows in under it, and water wicks up into it. Insulating the walls and the roof while leaving that band open is the most common incomplete version of this job, and it is also the cheapest part to get right.
The post goes through the envelope
Every post passes from the interior, through the insulated plane, to the ground outside. A wood post is a far better insulator than steel, so the bridging penalty is modest, but the post is still a path and, more importantly, the joint between the post and the insulation on either side of it is a joint that has to be closed. Sprayed foam handles this better than any cut product, because it seals to the irregular face of a rough post and to the girts on each side in the same pass. Batts between girts leave a line of gaps up every post in the building.
Girts outside or inside changes the job
Post-frame buildings are built both ways. Where the girts are on the outside face of the posts, the inside is a flat plane and the insulation runs cleanly across it. Where the girts are let in between the posts, the interior face is a series of bays with the posts projecting, and every bay has to be sprayed and sealed to the posts individually. The second case takes longer per square foot and produces a better result if it is done properly, because the foam ends up wrapping the framing rather than sitting between it. Which way the building is framed is worth establishing before anyone quotes it.
Open ground and driven snow
There is nothing upwind of most yards here. Sustained wind puts the windward wall under pressure and the leeward wall under suction, so a leaky post-frame building is flushed from one side to the other rather than drifting air in and out. Fine snow finds the gap under the skirt board and the gap at the eave closure, and it arrives inside a closed building, which surprises owners who assume a closed door means a closed building. Sealing those two lines is where a post-frame building changes most.
Then decide what temperature it holds
Once the shell is continuous, the question is whether the building is heated. An unheated pole barn needs only enough to remove the cold condensing surface, and closed-cell foam at roughly R-6 to R-7 per inch does that in a modest thickness. A heated one needs thickness matched to what it is for, and a thermal barrier over the foam if people use it. Those are two different quotes on the same building.
The crew on your job
We take care of pole barn spray foam insulation Vermilion end to end -- the assessment, the quote, the scheduling and the spraying. Our crews do the work.
Pole Barn Spray Foam Insulation Vermilion: Common Questions
Where do post-frame buildings actually fail? At the base. The skirt board or splash plank line connects inside to outside and often to the soil, and it is usually left open.
Why not just put batts between the girts? Because the posts interrupt every bay. Batts leave a line of gaps up every post, and foam seals to the rough post face instead.
Snow is getting inside a closed building. How? Under the skirt at the base and through the eave closure. Wind here drives it through any gap rather than letting it settle outside.
How much does pole barn spray foam insulation cost in Vermilion? Priced per board foot of sprayed area, so area and thickness set the base. Girts let in between the posts take longer than girts on the outside face.
How do I choose a pole barn spray foam contractor in Vermilion? Ask what they will do at the skirt board and at the eave closure. A quote that covers only the walls and the ceiling leaves both of them open.
Size the assembly with the R-value calculator, then get a free Vermilion quote. More on Pole Barn Spray Foam Insulation Alberta province-wide.