Wall spray foam insulation in Rimbey is the application with the most honest constraint attached to it. Foam has to be sprayed into an open cavity, which means a wall can only be done when the drywall is off or the sheathing is off. That makes it a renovation decision rather than an upgrade you can book on its own, and saying so at the start saves a great many wasted visits.
Why a closed wall cannot simply be sprayed
Foam expands as it cures and it has to be applied against an open face so the applicator can control thickness and see the result. Injecting it blind into a finished stud bay is not the same operation: it cannot be verified, it can over-expand against the drywall, and nobody can see whether the cavity actually filled. Where an existing wall has to be insulated without opening it, a dense-pack fibre material blown through small holes is the established method, and it is a perfectly good answer. It is not what we do with foam, and we would rather say that than sell the wrong thing.
When the wall is open, the opportunity is bigger than insulation
A stripped wall in an older house in town shows you what has been done to it over the decades, and that is the real value of the moment. Usually there is a mix of original and added insulation, a sheathing board behind it with gaps, wiring run through at some point, and a top plate open to the attic above. Spraying the open cavity seals all of it at once: the sheathing joints, the plate, the penetrations and the junctions at the corners and at the floor system. On a house whose problem is continuity rather than quantity, that is the whole job.
Flash and batt, and why it suits a 2x6 wall here
A full cavity of closed-cell in a six inch wall is more product than the assembly needs. The common and sensible specification is a flash of closed-cell against the sheathing, enough to seal and to carry the vapour control at around two inches, with a batt in front of it filling the rest of the depth. That combination gets the air sealing and the moisture control where they belong, at the cold side, and uses a cheaper material for the remaining R-value. In a climate with long unbroken cold and no mid-winter drying, keeping the sheathing above the dew point is exactly what that flash does.
Exterior renovations are the other opening
If siding is coming off, the wall is accessible from outside, and that is frequently the better moment because the occupants are not displaced. It also permits a continuous exterior layer over the framing rather than a cavity fill between it, which addresses the studs themselves rather than only the spaces between them. On a house in town getting new siding, that is a conversation worth having before the order is placed.
Where wall spraying is routine rather than exceptional
On new construction and on farm and commercial buildings, the wall is open by definition and none of the above applies. A post-frame or steel building is sprayed on the wall as a matter of course, because there is no finished surface in the way. The constraint described here is specifically about finished houses, which is where most of the enquiries come from.
Who you are dealing with
There is no handing you off here. We quote and manage wall spray foam insulation Rimbey start to finish, and our crews do the spraying.
Wall Spray Foam Insulation Rimbey: Common Questions
Can you spray our walls without taking the drywall off? No. Foam needs an open cavity. A dense-pack fibre product blown through holes is the method for a closed wall.
We are renovating one room. Is it worth doing those walls? Yes, if they are exterior walls and they are open. It is the one time they are reachable and the cost of doing them is at its lowest.
Should the whole cavity be closed-cell? Usually not in a six inch wall. A flash against the sheathing with a batt in front gets the sealing and vapour control where they matter at lower cost.
How much does wall spray foam insulation cost in Rimbey? Priced per board foot of the wall area at the specified thickness, so a flash-and-batt specification costs considerably less than a full cavity of closed-cell over the same wall.
How do I choose a wall spray foam contractor in Rimbey? Ask what they recommend if the wall is not coming open. A contractor who will tell you the honest alternative is the one to have back when it is.
Size the assembly with the R-value calculator, then get a free Rimbey quote. More on Wall Spray Foam Insulation Alberta province-wide.