About 60 percent of homes in Innisfail were built before 1991, and the useful thing about that figure is not the age itself. It is what age does to consistency. A house that has stood for forty or sixty years in a town like this has been worked on by a succession of owners and trades, and the result is that one house frequently contains three different wall assemblies and two different ideas about ventilation.
You cannot specify this stock from the street
Two houses that look identical from the sidewalk can be built completely differently behind the siding, and the same house can change assembly at a corner. The original section might be framed one way, a back addition another, and a section rebuilt after a renovation a third. Add two generations of re-siding and whatever insulation was pushed in during each, and there is no single answer to what is in the wall. This is why we do not quote residential work here off a photograph and a square footage. The walk-around is the part that makes the number mean anything.
The order that returns the most on a layered house
On this stock the sequence is fairly consistent even when the construction is not. The ceiling plane first, because it is the largest single surface and the place warm air actually leaves. Then the rim joist band, which is a small area with a disproportionate share of the leakage and no demolition required to reach it. Then the basement wall above frost depth. Walls come last, not because they do not matter but because reaching them means opening something, and that should be done when there is another reason to open it.
A good R-number with the draught still coming through
The thing that surprises people most is that a house can have a respectable amount of insulation and still be uncomfortable. Insulation resists heat moving through a material. It does nothing about air moving around it, and in an older house there is a great deal of air moving: up through the wall cavities, around the top plates, past the plumbing stack, through the band joist and out at the ceiling. Air sealing is the separate job, and it is the one that changes how a house feels. Sprayed foam does both at once, which is the main reason it gets used on retrofits where access is limited.
Two products, used for different reasons
Closed-cell foam runs about R-6 to R-7 per inch and is a vapour barrier at roughly two inches, so it goes where the space is tight or where moisture has to be controlled: rim joists, basement walls, shallow roof cavities, crawl spaces. Open-cell runs about R-3.5 to R-3.8 per inch, is more open to vapour, and suits interior partitions and sound work where there is depth available and no moisture drive. A quote that does not name which one is going where has not described the work.
What living in the house changes
Almost all of this is done with the family still in place, which shapes the sequence more than anything technical. Rim joists and a basement wall are a contained job in a part of the house nobody is using. An attic is accessed from a hatch and can be done in a day. Opening a wall is the one that disrupts a household, and that is the main argument for doing it when a renovation is happening anyway rather than as a standalone project.
Who quotes it and who sprays it
We take care of residential spray foam insulation Innisfail end to end -- the assessment, the quote, the scheduling and the spraying. Our crews do the work.
Residential Spray Foam Insulation Innisfail: Common Questions
Why does my house feel draughty when the insulation was topped up? Because depth resists conducted heat and does nothing about moving air. In an older house the air leakage is usually the larger share of the problem.
Where should we start if the budget is limited? The ceiling plane and then the rim joist band. Both are large in effect, modest in scope, and need nothing taken apart.
Which foam goes where? Closed-cell where space is tight or moisture matters, open-cell where there is depth and the job is interior or acoustic. The quote should say which.
How much does residential spray foam insulation cost in Innisfail? It is priced per board foot of sprayed area at the specified thickness, so the number follows area and target R-value. On this stock the variable that moves it most is access and whether failed material has to be removed first.
How do I choose a residential spray foam contractor in Innisfail? Ask what they found when they looked, and whether they expect the walls to be the same all the way round. Anyone who answers that question confidently without having opened anything is guessing.
Size the job with the R-value calculator, then get a free Innisfail quote. More on Residential Spray Foam Insulation Alberta province-wide.