Barn spray foam insulation in Didsbury is mostly work on horse and small cattle buildings on acreages and quarter sections around the town, and on most of them the stock is checked morning and evening rather than watched through the day.
Ventilation nobody is there to adjust
A barn that relies on somebody opening a door when it gets close inside is being run, not designed. On a yard where nobody is home between the checks, the ventilation has to be right at the setting it is left on, through a day that may start at minus twenty and end near freezing. That is the argument for sealing the shell properly and then sizing a small continuous rate, rather than leaving the building leaky and treating the leaks as ventilation. Leaks move air when the wind blows and stop when it does not, which is the opposite of what a barn full of animals needs.
The bedding pack is a heat source and a moisture source at once
A deep pack composts. It puts real heat into the building from below, and it puts water vapour in with it, and the two arrive together. Owners tend to account for the animals and not for what they are standing on. It matters here because that combination is what drives water up to the coldest surface in the building, usually the underside of the roof, where it condenses and comes back down somewhere else. Insulating the roof plane changes that surface temperature, which is the actual mechanism, and it is why the roof is normally the first and sometimes the only part worth doing.
Damage that accumulates between one check and the next
The failures in a building like this are slow. A drip that would be dealt with in an afternoon if somebody saw it runs for a season instead, into a plate, a post base or a bale stack. By the time it is visible from the doorway there is carpentry in the job as well as insulation. This is the honest reason to look at a Didsbury barn before it is obviously in trouble rather than after, and it is also why the first thing done on any of these is a look at the sills, the plates and the bottom of the posts. Foam over something already wet just puts it out of sight.
Birds and rodents, since everyone asks
It comes up on every barn and the answer is worth giving straight. Closed cell foam is not food and nothing eats it for nourishment, but it is soft enough that a determined rodent will tunnel it, and birds will take at anything friable. What matters more is that a properly sprayed and sealed shell leaves far fewer of the gaps that let them in to begin with, which is a real improvement over batt or a loose vapour sheet. Where a barn already has a serious rodent problem, that gets dealt with first, because sealing a building with them inside it helps nobody.
Barn Spray Foam Insulation Didsbury: Common Questions
Should the whole barn be done? Usually not. The roof plane is where the condensation forms and it is normally enough.
Will mice get into it? They can tunnel it. A sealed shell has far fewer ways in, which matters more in practice.
Does an unheated barn still need insulation? That is fine and normal. This work is about surface temperature and moisture, not heating.
Size the assembly with the R-value calculator, then get a free Didsbury quote. More on Barn Spray Foam Insulation Alberta.