Spray foam roofing in Ponoka is a recover system, sprayed over an existing low-slope roof and finished with a protective coating. On the buildings that matter most in this town, the method is not a preference, it is the only one that fits.
A recover over a building that has people living in it
A tear-off puts a building under an open roof for a period. On a shop that is an inconvenience. On a Ponoka care or health building it is not acceptable at any price, because the people inside cannot be moved and nobody can promise what the weather will do. A recover leaves the existing assembly in place as protection while the new system goes over it, so at no point is anything below exposed. That is the whole argument on these buildings and it comes before any discussion of cost.
Working above occupied space, agreed in advance
Everything happens from the roof, which means nothing enters the areas below, and that is a large part of why this method suits an occupied building. What still has to be agreed is the practical detail: which areas are being worked over on which days, where equipment sits, how the work relates to ventilation intakes, and what happens if the weather turns. Those get settled with the people responsible for the building before anybody starts.
Intakes, exhausts and the plant on the roof
An institutional roof is busy. Air intakes, exhaust stacks, mechanical units, conduit and drains all penetrate it, and the intakes matter more here than on any other building type because what happens near them affects the air inside. Work is sequenced around them deliberately, and where an intake cannot be isolated for a period the sequence changes rather than the intake being ignored. That is not a complication, it is the job.
Where these roofs actually fail
Not in the field. At the flashings around units and curbs, at the parapet upstand, and at drains that have been adjusted over decades of repairs by different people. A sprayed system runs continuously up and around a curb with no seam at the transition, which removes the joints that were failing. On a Ponoka building where a leak lands on something that cannot be moved, that continuity is worth more than it would be on a warehouse. It is also why the survey spends most of its time on those details rather than walking the field of the roof, which is usually the soundest part of the assembly.
Spray Foam Roofing Ponoka: Common Questions
Can this be done over an occupied building? It is the method that suits one. The existing roof stays in place and nothing below is ever exposed.
What about our air intakes? They are sequenced around deliberately. Where one cannot be isolated, the sequence changes.
Where do these roofs leak? At flashings, curbs and drains far more often than in the field of the roof.
Size the assembly with the R-value calculator, then get a free Ponoka quote. More on Spray Foam Roofing Alberta.