Crawl space spray foam insulation in Morinville is nearly always work under part of a house rather than all of it, because the houses with crawl spaces here are on the older half of the town and the crawl space is usually under something that was added later.
The addition is where the crawl space came from
A room built onto the back of a house decades ago was frequently put on a shallow foundation rather than dug to full depth, which is cheaper and was normal at the time. That leaves a low space under one part of the building only, reached through a hatch in a closet or from the basement through an opening in the original foundation wall. It is the least visited part of the house, it is where the plumbing to that addition runs, and it is almost never sealed at the point where it meets the basement.
Two spaces on either side of an old foundation wall
The connection between the basement and the crawl space is the detail that matters most and it is routinely missed. The original wall was an exterior wall, and the hole cut through it to reach the crawl space made two spaces into one without any of the detailing that would normally involve. Air moves between them constantly, so the crawl space is not a separate problem to be dealt with later. It is part of the basement, and a Morinville house is treated that way or it is treated twice.
The ground, and what it is doing to the space above it
Most of these have bare soil, or a thin slab at most, and that ground gives up moisture into the space all year. In a low space with little air movement that produces damp joists, rusted fittings and a smell that reaches the room above through the floor. Covering the ground and sealing the perimeter is what stops it, and doing the joists overhead while leaving the ground open treats the symptom and keeps the source.
How you get in decides most of the price
The access to one of these is frequently a hatch cut for somebody who last used it in 1978. If it is a small opening in the floor of a closet at the far end of the house, every litre of material and every piece of equipment goes through it by hand and the job takes as long as it takes. If there is an opening from the basement a person can get through, the same work is a fraction of the time. Establishing that before quoting a Morinville crawl space is the difference between a number that holds and one that has to be revised on the first morning.
Crawl Space Spray Foam Insulation Morinville: The Covering Requirement
Where a crawl space is used only for services and nobody occupies it, the covering requirement is assessed on that basis rather than as an occupied room, and where a Morinville space has been finished or is used for storage people go into, the thermal barrier requirement applies as it would anywhere else. Getting that decided at the survey rather than afterwards is what keeps the price firm. More on thermal barrier vs ignition barrier.
Crawl Space Spray Foam Insulation Morinville: Common Questions
Does it matter that only part of the house has one? That is the usual pattern here. It is under an addition rather than under the whole building.
Does it connect to the basement? Almost always, through a hole cut in what used to be an exterior wall. They get treated together.
What should be done if there is bare earth down there? Then it is a moisture source, and covering the ground comes before the joists overhead.
Size the assembly with the R-value calculator, then get a free Morinville quote. More on Crawl Space Spray Foam Insulation Alberta.