The complaint that brings us into a Wainwright attic is usually not a cold upstairs. It is a stain on a bedroom ceiling in March that the homeowner has already paid somebody to chase as a roof leak. Attic spray foam insulation in Wainwright starts with explaining where that water came from, because on this prairie the answer is almost never the shingles.
Dry snow does not pile up, it travels
Snow out here is fine and it is driven, and a driven flake follows whatever air path is open to it. A soffit vent is designed to pass air, so it passes snow as well, and once the snow is inside the roof space it lands on whatever is coldest and furthest in. We find white drifts sitting on top of blown-in insulation two and three metres back from the eave, in attics with a roof in perfectly good order. In February it is frozen and invisible. In March it melts, soaks the insulation, and comes through the ceiling in a patch that looks exactly like a leak.
Why the baffles matter more than the depth
A proper baffle takes the incoming air up over the top of the insulation and into the roof space in a controlled way, and it also gives the drift somewhere to drop out before it reaches the ceiling. On a lot of houses here the baffles are missing entirely, or they stop short, or the blown-in has been pushed up past them and is now acting as a filter for every northwest gust. More depth in that attic does not improve the situation; it gives the snow a bigger sponge to land on.
The holes that run all winter
Separate from the snow, the ceiling plane on a pre-1991 house is full of openings that work every hour of the season: the plumbing stack, bathroom fan housings, the top plates where interior partitions meet the drywall, any dropped soffit over kitchen cabinets, and the attic hatch, which is frequently just a panel resting in a frame with nothing insulating it and nothing sealing the edge. Warm moist indoor air leaves through those and, because frost here sets in and stays rather than cycling, it has months in which to frost up on the underside of the sheathing and release when it finally warms.
What foam does up here
It is the sealing layer, not a bulk depth product. Closed-cell goes around the stack, the fan boxes, the top plates and the hatch perimeter, and it closes the kind of irregular gap that nothing cut to size will ever fill. Once the plane is sealed and the baffles are rebuilt, blown-in depth on top finally does what the label promised, because the air is no longer moving through it.
Why depth-only disappoints on this stock
A homeowner who tops up a leaking attic has bought R-value and no air barrier. The house feels the same, the frost still forms, and the conclusion drawn is that insulation does not work. It does work. It was asked to solve the wrong half of the problem. Seal first, then add depth, and the two together behave very differently from either one alone.
We take care of the work
There is no handing you off here. We quote and manage attic spray foam insulation Wainwright start to finish, and our crews do the spraying.
Attic Spray Foam Insulation Wainwright: Common Questions
There is snow in my attic. Is the roof leaking? Usually not. Driven snow enters at the vents and follows the air path inward. Snow inside the attic is evidence of an air route, which is also where your heat is going.
Should the soffit vents be blocked off, then? No. The roof space needs them. What it needs with them is a baffle at every rafter bay so the air and anything it carries goes up and over the insulation rather than straight into it.
Do we need the whole attic sprayed? Rarely. Depth is usually already present on these houses. The missing work is sealing the penetrations and rebuilding the ventilation path.
How much does attic spray foam insulation cost in Wainwright? The sprayed portion is priced by area and depth, and the penetrations, hatch and baffles are smaller separate items. On a Wainwright attic those small items are usually where the result comes from.
How do I choose an attic spray foam contractor in Wainwright? Ask whether the quote includes the hatch and the baffles. A number that only covers the open flat area has priced the easy part and left the cause in place.
Size the job with the R-value calculator, then get a free Wainwright quote. More on Attic Spray Foam Insulation Alberta province-wide.