Wall spray foam insulation in Morinville is the item where the gap between the two halves of the town is widest, because a wall built in the nineteen sixties and a wall built in the two thousands are not the same assembly with different amounts of insulation in them.
An older wall may be shallower than anybody assumes
On the older half the studs are frequently not the depth a modern wall uses, the sheathing is board rather than a panel, and there may be little in the cavity or nothing at all. That sets a ceiling on what the wall can hold before anybody chooses a product, and it is the reason a specification copied from a newer house does not transfer. Establishing the actual cavity depth on a Morinville house is a five-minute exercise and it changes the answer completely.
Getting into a closed wall without taking the house apart
The wall is the surface people ask about first and it is the one that comes third, because reaching it means removing something. From inside that is the drywall and the finish. From outside it is the cladding, which suits a house already due for new siding and makes no sense for one that is not. Which side a particular house should be opened from is decided by what it needs anyway rather than by which is easier for the person quoting.
On the newer half the wall is rarely the answer
A wall built under a code that already required insulation and an air barrier is performing close to its design, and opening it up buys a small improvement at a large cost. The items worth attention on these houses sit at the junctions instead: where the wall meets the floor structure, where it meets the roof, and where it meets an attached garage. Saying that plainly costs work and it is the correct answer for most newer Morinville houses that enquire about their walls.
Where the wall genuinely is the right call
Two cases justify it on either half. A house being re-clad, where the cavity and the exterior are open anyway and the marginal cost is low. And a single wall with a demonstrated problem: a north elevation that is measurably colder, a room that has never been comfortable, or a section where the original insulation has settled or been disturbed. Beyond those two, the money goes further somewhere else in the building.
Wall Spray Foam Insulation Morinville: Common Questions
How deep are our walls? On the older half, often shallower than a modern wall. It is checked before anything is specified.
Should we do the walls on a newer house? Rarely. The junctions around the wall repay far more than the wall itself does.
When is it worth doing? When the siding is coming off anyway, or when one specific wall has a demonstrated problem.
Size the assembly with the R-value calculator, then get a free Morinville quote. More on Wall Spray Foam Insulation Alberta.