Ceiling spray foam insulation in Camrose is a job about roofs with very little room in them. The older houses here were built with shallow roof pitches over modest footprints, and a shallow roof gives an attic crew nowhere to work and nowhere to put material.
A shallow roof runs out of room exactly where it matters
A low pitch over a small footprint leaves a space that is tight at the ridge and effectively nothing at the eaves, which is precisely where the ceiling meets the exterior wall. There is no room for depth at that junction, no room for a person, and frequently no baffle holding the eave clear. Blowing more material into the middle of such a roof does very little, because the losses are concentrated at a perimeter nobody can reach with a hose.
The back extension has nothing above it
Nearly every older Camrose house has been added to, and those additions were typically roofed at a shallow pitch running off the existing wall. That leaves a cavity a few inches deep with no access and often no air barrier of any kind. It is the single most common cold ceiling in this town, it cannot be reached from the main attic hatch, and it is almost always the room the owner is calling about.
A house cut into suites has more ceilings than it looks like
Where a large old house has been divided, ceilings appear in places a single-family plan would not have them: under a converted attic room, over a stairwell that was closed in, above a suite that was carved out of what used to be one storey. Each of those is potentially an exterior surface, and a plan drawing does not show which. Finding them is part of the visit.
Performance per inch is what counts in a shallow cavity
Where depth is fixed, what matters is how much can be achieved in the space available and whether the assembly can be sealed at the same time, because a shallow cavity with air moving through it performs far below whatever its nominal value claims. That is the case where a sprayed product earns its place rather than being one option among several, and where the venting decision has to be settled before anything is applied.
Ceiling Spray Foam Insulation Camrose: Common Questions
Why is the back room ceiling cold with no attic above it? That is the shallow addition, and it is the most common one here. It cannot be reached from the main attic.
Can we just add more insulation? Not where there is no room. The losses are at the perimeter and depth in the middle does not reach them.
Our house is divided into suites. Does that complicate it? It adds ceilings in places a normal plan does not have, and finding them is part of the visit.
Size the assembly with the R-value calculator, then get a free Camrose quote. More on Ceiling Spray Foam Insulation Alberta.