Spray foam roofing in Crossfield applies to the low-slope roofs on the town's commercial, institutional and light industrial buildings, and to the flat-roofed sections on older buildings in the core. It is a different product from cavity insulation: the foam is sprayed on top of the existing roof as the structural insulating layer, shaped to drain, and then coated to protect it from sunlight and weather. It is worth being clear about where it earns its place and where it does not.
What makes it suit a roof rather than a cavity
Two properties. First, it is sprayed in place and self-adhering, so it becomes a continuous surface with no seams, no fasteners through it and no laps for water to find. On a roof, seams and fasteners are where almost all failures start. Second, it can be built up to different thicknesses in different places, which means an existing dead-flat deck can be given a slope to the drains without any structural work. On a prairie site with no fall in the ground and roofs that were built level, that second property is frequently the whole reason the job gets done.
Ponding on a flat site
A roof that was built flat and has settled slightly, or that has deflected between beams over the years, holds water in the low spots. Standing water finds every weakness in a membrane, it loads the structure where it is least able to take it, and in this climate it freezes and thaws repeatedly through the winter, which works at the material far harder than water alone. Foam can be sprayed thicker at the low points and feathered to the drains so the water leaves. That is a genuine fix to the cause rather than another patch over the symptom.
Wind uplift on a building with nothing upwind
Crossfield sits on open ground and there is nothing to break the wind before it reaches a roof here. Wind over a roof creates suction, strongest at the edges and the corners, and that is what lifts mechanically fastened membranes and tears them back. A fully adhered foam roof has no sheet to lift and no fastener pattern to fail around, which is a real advantage on an exposed site. The edge and corner detailing, the parapet and the terminations still have to be done properly, because that is where an exposed roof is tested hardest.
The coating is the roof, and it is not permanent
This is the part a building owner has to understand before committing. Foam itself degrades under ultraviolet light and has to stay covered. The protective coating over it is what takes the sun, the hail and the weather, and it is a maintenance item on a cycle rather than a one-time installation. A foam roof that is recoated when it is due can be renewed indefinitely without a tear-off. A foam roof that is never recoated will fail, and the failure will be blamed on the foam. We will tell you plainly what the coating regime involves, because a roof that depends on maintenance and does not get it is worse than a roof that never needed any.
The crew on your job
Spray foam roofing Crossfield is quoted, scheduled and sprayed by us. Our own installers are on the job, and the number you are given is the number we stand behind.
Spray Foam Roofing Crossfield: Common Questions
Can it go over the existing roof? Often yes, which is a large part of its appeal, but only if the existing roof is sound and dry underneath. A wet substrate gets removed first, because sealing water in guarantees a problem later.
Can it fix a roof that holds water? That is one of the things it does best. The foam is applied thicker at the low points and tapered to the drains, which puts fall into a deck that has none.
Why is it good on an exposed building? Because it is fully adhered with no sheet and no fasteners, and wind uplift works by lifting sheets and failing fasteners.
How much does spray foam roofing cost in Crossfield? It prices on roof area and the average depth applied, plus the coating and whatever edge and penetration detailing the roof carries. Recoating is a scheduled cost afterwards and belongs in the comparison.
How do I choose a spray foam roofing contractor in Crossfield? Ask what the recoat interval is and what it will involve. A contractor who treats the coating as a maintained system is describing the product accurately; one who does not mention it is selling you a roof you will not look after.
Size the assembly with the R-value calculator, then get a free Crossfield quote. More on Spray Foam Roofing Alberta province-wide.