Residential spray foam insulation in Stony Plain is decided by which era a house belongs to, and on the older third of this town it is decided by how many times the house has been extended.
A house that grew, and the joints it grew at
The dominant pattern on the older streets is a building that is not one building. There is an original house, and then a sequence of additions made in different decades by different people, each meeting the standard of its day and each joined to what was there before. Those joints are the work. They run vertically through the foundation, horizontally at the floor and again at the roof, and none of them were ever detailed as part of a continuous envelope because at the time each was made, the thing it was being joined to was an exterior wall.
Finding the joints before pricing anything
On a Stony Plain house like this the assessment is a walk around the outside establishing where the building changes, followed by matching that to what is visible in the basement and the attic. A change in siding, a step in the roofline, a different window style or a course of brick that stops are all telling you where a junction is. That is a genuinely useful half hour and it produces a specific list rather than a general one, which is what separates a quote worth comparing from a number somebody produced from the floor area.
The order that suits a house with additions
The rim joists come first because there are usually two or three of them and they are reachable while a basement is unfinished. The junction where an addition's foundation meets the original one comes next, because it is the single longest uncontrolled path in the building. The ceiling plane follows, treated at its penetrations rather than across its middle. The walls come last and generally only when something else has opened them.
Where the newer streets need a different answer entirely
On the post-1991 half of this town none of the above applies. Those houses are one building, built in one go to one specification, and their losses concentrate at the rim joist, at the surfaces shared with an attached garage, and at the steps and bulkheads in the ceiling. It is a shorter list and a cheaper job, and running the older-house process on one of these wastes a visit.
Residential Spray Foam Insulation Stony Plain: Common Questions
Why is the back of the house always colder? That is usually the addition, and specifically the joint where it meets the original building.
How do we know which era we are? The build year, and then a walk around the outside looking for where the building changes.
Is the wall the problem? Rarely. On this stock it is the junctions, and there are more of them than people expect.
Size the assembly with the R-value calculator, then get a free Stony Plain quote. More on Residential Spray Foam Insulation Alberta.