About 60 percent of homes in Innisfail were built before 1991, which means the town contains several generations of foundation wall standing side by side on the same street. Basement spray foam insulation in Innisfail starts with identifying which one you have, because a concrete block wall and a poured wall fail in different places and want different thicknesses.
Concrete block is a stack of air cells
A good share of the older stock here sits on block. Block is hollow by design, and the cores run vertically from the footing to the top course. Unless they were filled, that is a column of air inside your foundation wall, connected to the soil at the bottom and to the floor joists at the top. Air moves up through those cores, and so does water vapour out of the ground. Any insulation applied to the inside face has to be the vapour control as well, or the moisture coming out of the cores condenses behind it. Closed-cell foam at roughly two inches is a vapour barrier in its own right, which is the reason it suits a block wall where a stud wall with a poly sheet does not.
The top few feet does most of the work
Frost goes deep in this part of the province, and it stays down for months. That sounds like bad news for the whole wall, but the part of the wall sitting in frozen soil is insulated by the ground above it and loses heat slowly. The part that loses it fast is the band from the floor joists down to roughly the depth where the ground stops freezing. Above grade it is exposed to the air directly. Just below grade it is against soil that is as cold as the air. If a budget is limited, the top metre of wall and the joist band above it are where the money goes.
Spalling, and what freeze-thaw does to the inside face
Repeated cycling through zero is harder on a foundation than a steady deep cold. Water in the outer face of the block or the concrete expands every time it freezes, and the surface eventually breaks away in flakes. On the inside you see it as a chalky white deposit and a crumbling face near grade. Foam will adhere to sound masonry, so a wall in that condition needs to be cleaned back to something solid first. Spraying over loose material bonds the foam to a surface that is already leaving.
Water before insulation, every time
In a town where most houses predate 1991, the drainage around the house is as old as the house unless somebody has replaced it. Grading that has settled toward the wall, a downspout discharging at the corner, weeping tile that may or may not still run. None of that is an insulation problem and all of it will ruin an insulation job. We would rather point at a downspout on the first visit than spray a wall that is going to be wet behind the foam by spring.
Basement Spray Foam Insulation Innisfail: The covering requirement
Foam does not stay exposed in a finished or occupied space. A basement needs a thermal barrier over it, and down here that is normally drywall. It matters because the covering is part of the job rather than a later renovation decision, and a figure that stops at the foam has only described half of what has to happen before the room is usable.
One company, start to finish
On basement spray foam insulation Innisfail, the people who quote the work are the people who do it. We insulate it ourselves and we answer for the result.
Basement Spray Foam Insulation Innisfail: Common Questions
How do I tell whether my wall is block or poured? Look at the inside face at the top, above any finishing. Block shows a grid of mortar joints; poured concrete shows horizontal form marks and tie holes.
Do the block cores need filling? Not for insulation purposes. What matters is that the inside face gets a layer that is also a vapour barrier, so whatever comes up through the cores cannot condense behind it.
Is the whole wall worth doing, or just the top? The top metre and the joist band give the largest share of the result. Doing the full height is better, but the order matters if the work has to be staged.
How much does basement spray foam insulation cost in Innisfail? It is priced per board foot of wall area at the thickness specified, so the number follows the perimeter, the wall height and the target R-value. The thermal barrier over the foam and any masonry preparation are separate items and both belong in the quote.
How do I choose a basement spray foam contractor in Innisfail? Ask what they found outside the house before they talk about the wall. On this stock the drainage and the grade decide whether a basement job lasts.
Size the wall with the R-value calculator, then get a free Innisfail quote. More on Basement Spray Foam Insulation Alberta province-wide.