About 74% of homes in Vermilion were built before 1991. That is the single most useful fact about residential spray foam insulation in Vermilion, because it means the typical job here is a retrofit on a house that was framed to a standard nobody would build to now, and retrofits reward sequence. Doing the right three things in the right order beats doing everything.
What a pre-1991 house in this town actually is
Mostly single-storey and storey-and-a-half houses on generous lots, a lot of it built across the 1950s to the 1970s, with later additions bolted on. Walls are typically 2x4 with whatever insulation was standard at the time, often compressed or settled and almost never air-sealed. Basements are concrete or block with no exterior insulation. Attics have had depth added at some point and the eaves still taper to nothing. Rafters sit on the top plate with no raised heel. None of that is a defect; it is simply a different design intent, and it tells you where the heat is going.
The order that works
First, the rim joist and the basement perimeter, because the rim is the leakiest accessible surface in a house of this age and the coldest, and it can be done in a day. Second, the ceiling plane: seal the stack, the flue chase, the bath fan, the light boxes and the top plates, and spray the eave where there is no room for depth. Third, the walls, and only when the siding is coming off or the interior is being opened anyway, because the walls are the most expensive access and the least urgent return. Anybody who proposes walls first on this stock is pricing the hardest job before the cheap ones.
Why the house got draughty rather than cold
Insulation slows heat conduction. It does not stop air moving, and air moving is what people actually feel. A sixty-year-old house has a stack effect: warm air leaves through the ceiling, cold air is drawn in at the bottom through the rim joist, the sill plate and the basement windows, and the whole house runs that circuit all winter. Adding depth in the attic does not interrupt it. Sealing the top and the bottom of the circuit does, and that is why two interventions at the extremes of the house change it more than a lot of material in the middle.
The material choice is not a preference
Closed-cell at about R-6 to R-7 per inch is a vapour barrier at roughly two inches and is the right product against concrete, in rim joists and anywhere thickness is limited. Open-cell at about R-3.5 to R-3.8 per inch is cheaper per inch, more flexible and better acoustically, and belongs in interior walls, between floors and in sound work. The choice follows the location in the building, not a general view about which is better.
Deep frost and a long heating season
East-central Alberta does not get the chinook cycling that interrupts a southern Alberta winter. Here it gets cold and stays cold, which means two things: the heating season is long and continuous so improvements pay back on hours of operation, and any cold surface in the building stays cold enough to condense interior moisture for months rather than days. That is why moisture control is not a separate topic from insulation on these houses, it is the same topic.
Tightening a house changes its ventilation
A house sealed properly needs its ventilation considered, particularly if it has combustion appliances that draw air from inside. That is a conversation to have before the work, not a problem to discover after it.
Who does the work
We take care of residential spray foam insulation Vermilion end to end -- the assessment, the quote, the scheduling and the spraying. Our crews do the work.
Residential Spray Foam Insulation Vermilion: Common Questions
Where should we start on an older house here? The rim joist and basement perimeter, then the ceiling plane and the eave. Walls last, and ideally while the siding or interior is already open.
Why does our house feel draughty when the attic is full? Because insulation does not stop air. Warm air leaves through the ceiling and cold air is drawn in low down, and depth in the attic does not interrupt that.
Closed-cell or open-cell? Closed-cell against concrete, in rim joists and where thickness is tight. Open-cell for interior partitions and sound. It is decided by location, not preference.
How much does residential spray foam insulation cost in Vermilion? It is priced per board foot of sprayed area, so area and thickness set the base. On pre-1991 houses access, and whether existing finishing has to come out, is the real variable.
How do I choose a residential spray foam contractor in Vermilion? Ask for the order they would do it in and why. On this stock a contractor who starts with the walls is quoting the most expensive item first.
Size the job with the R-value calculator, then get a free Vermilion quote. More on Residential Spray Foam Insulation Alberta province-wide.