Langdon houses mostly have full basements, so a crawl space here is rarely the main floor structure. It is almost always something added: a room built onto the back of a house, a bump-out over a shallow foundation, the space under an entry or a sunroom, or the small enclosed pit under an acreage utility room that holds the pressure tank and the lines from the well. Crawl space spray foam insulation in Langdon is usually about one of those pockets, and they share a problem the rest of the house does not have.
The pocket nobody designed as part of the envelope
An addition gets built to solve a space problem, and the void beneath it gets closed in rather than detailed. There may be a vent or two in the skirting, there may be nothing, and the insulation if any is batt stapled between the floor joists where it eventually sags and falls. The room above is then the cold room, winter after winter, and the owner blames the windows. Underneath, there is a ventilated or half-ventilated space connected to the house by every gap in the subfloor.
Deal with the ground before the walls
An earth-floored crawl space releases moisture continuously, and no amount of insulation above changes that. A sealed vapour barrier across the ground, carried up the walls and lapped properly, goes down first, because once it is in place the space can actually be dried and brought inside the envelope. We will not spray a crawl space with bare soil under it and call the job finished, since the moisture has to go somewhere and the first cold surface it finds will be in the assembly we just built.
A water line in an unheated crawl on a well system
On county parcels outside the hamlet core, the crawl space under a utility room often carries the pressure tank, the line from the well and sometimes the pump controls. Those cannot be allowed to freeze, and that changes the specification: the space needs to be inside the heated envelope rather than merely insulated from the house. That means insulating the perimeter wall and the rim, not the floor above, so the warmth of the house reaches the pipes instead of being held out of the space they are in.
Vented, sealed or heated, and only one of them
The failure we see most often is a crawl space trying to be two things. Insulation in the floor above, as though the space were outdoors, with the vents stuffed closed and a heat run dropped in, as though the space were indoors. The result is a cold cavity with warm moist air leaking into it and nowhere for that moisture to go. Pick the strategy that suits what is down there, then build every part of the space to that one strategy.
Who you are dealing with
For crawl space spray foam insulation Langdon, we quote and manage the whole job and our own installers do the work. The free quote comes from the people who will be on site.
Crawl Space Spray Foam Insulation Langdon: Common Questions
The room over the crawl space is always cold. Is insulation the answer? Partly. The insulation is usually missing or fallen, but the air leakage into the space from outside is what makes it feel like a cold floor rather than a cool one.
Should the crawl space vents be closed? Only as part of a decision to bring the space inside the envelope, with the ground sealed and the perimeter insulated. Closing vents on their own makes things worse.
Our well lines run through there. Does that change the job? Yes. Freeze protection means the space gets treated as part of the heated house, so the work goes on the perimeter walls rather than the floor above.
How much does crawl space spray foam insulation cost in Langdon? It is priced per board foot of sprayed area at the depth the assembly needs, plus the ground cover where there is bare soil. Access and headroom affect the time on site more than the area does.
How do I choose a crawl space spray foam contractor in Langdon? Ask what they plan to do about the ground. A quote that starts at the insulation and never mentions the soil below it is quoting half an assembly.
Size the assembly with the R-value calculator, then get a free Langdon quote. More on Crawl Space Spray Foam Insulation Alberta province-wide.