Sprayed roofing is a low-slope commercial system: foam applied over the existing deck to form a continuous, seamless, self-flashing surface, then protected by a coating. On the flat-roofed buildings along the Highway 2 corridor through the County of Grande Prairie No. 1 it solves a real problem, and at this latitude it also comes with a short calendar and a maintenance obligation that nobody should be surprised by.
The seam is the thing it removes
Most low-slope roof failures happen at a joint, a lap or a penetration rather than in the middle of a field. A service building roof here is covered in curbs, vents, exhaust fans, make-up air units and the odd crane penetration, and every one of those is a flashing detail. Sprayed foam is applied as a liquid and rises up against whatever it meets, so the curb and the field become one surface with no lap to open. On a roof with a high penetration count that is the whole argument.
Slope built out of foam
The other thing foam can do that a membrane cannot is change the shape of the roof. Where water is standing in a low spot, the foam can be built up to drain it toward the outlet rather than leaving the ponding and hoping the membrane holds. That matters more in a climate where ponded water freezes, thaws against the roof surface and refreezes, which is a slow way to destroy a joint.
The coating is not optional and it is not forever
Ultraviolet light breaks polyurethane foam down. A sprayed roof is foam plus coating, and the coating is a consumable that has to be inspected and recoated on a cycle. Owners who treat the coating as a finish rather than as maintenance get a roof that chalks, erodes and eventually exposes foam to weather. We would rather say that plainly up front than have it discovered in year eight. A building owner who will not commit to recoating is better served by something else.
Snow load and a long season on the roof
Up here snow arrives early and sits. That has two consequences for roofing. First, the roof is under load and under cover for a long stretch, which means any defect goes undiagnosed for months because nobody is up there looking at it. Second, where snow drifts against a parapet or a higher wall, it concentrates, melts against the warm surface and runs to the lowest point available. Sprayed foam's continuity helps there because there is no lap for that meltwater to work into, but drift locations still need to be identified before work starts, not after.
The application window is short
Foam roofing is outdoor work with firm limits: the deck has to be dry, above its minimum temperature, and the wind has to be manageable for overspray control. At this latitude that is a narrower stretch of the year than it is in southern Alberta, and it closes earlier. A roof that needs doing this year has to be scoped and booked well ahead of the weather, because there is no stretching the season at the far end of it.
One company, start to finish
We take care of spray foam roofing Clairmont end to end -- the assessment, the quote, the scheduling and the spraying. Our crews do the work.
Spray Foam Roofing Clairmont: Common Questions
Can it go over the existing roof? Often, if the existing assembly is sound and dry. Wet insulation under an old membrane has to come out first, because foam applied over trapped moisture seals the problem in.
What maintenance does it need? Inspection and recoating on a cycle. The coating is the sacrificial layer that protects the foam from ultraviolet light, and it has a service life.
Will it fix water standing on the roof? It can. Foam is built to slope, so low spots can be filled to drain toward the outlet rather than left to pond and freeze.
How much does spray foam roofing cost in Clairmont? It follows roof area, the thickness needed and how much tear-off or drying the existing assembly requires. The coating specification and the number of penetrations are the other two lines that move the number.
Who does spray foam roofing in Clairmont? We do. We inspect the deck, scope the job, quote it, schedule it inside the application window and stand behind the result.
Size the assembly with the R-value calculator, then get a free Clairmont quote. More on Spray Foam Roofing Alberta province-wide.