Spray foam roofing in Stony Plain covers the low-slope roofs over the downtown blocks, and on a good number of them the wall the roof terminates against has a mural painted on the other side of it.
A parapet with artwork on the far face
This is the detail that makes roofing here different. The roof edge on a downtown building runs up a parapet, and the outside of that parapet is frequently part of a painted wall. Everything about how the roof is terminated, flashed and drained therefore has to be planned so that nothing is fixed through, run over or allowed to weep down that face. It is entirely workable and it is not expensive, but it has to be established at the survey rather than discovered by a crew standing on the roof with a decision to make.
Where the water goes when it cannot run down the front
On an ordinary building a bit of overflow down a wall is untidy. On a painted Stony Plain shopfront it is damage, and staining or efflorescence from water tracking over a parapet is exactly the kind of slow harm nobody notices until the mural is affected. So drainage on these roofs gets more attention than the size of the building would normally justify: where the drains are, whether they are adequate, and where the overflow goes if they block. That is a roofing decision with a consequence outside the roof.
Buildings that touch, and a roof that is partly somebody else's
Downtown blocks here are continuous, so a roof frequently ends at a wall shared with the next property rather than at open air. That means a recover has a neighbour, the parapet between the two belongs to both, and the flashing detail at that junction is a conversation as well as a specification. Where two owners can be persuaded to do their roofs in the same season the junction is done properly once. Where they cannot, it is detailed to work regardless, and that is stated up front.
Recovering over a deck that is still dry
The value of acting early on a downtown roof is the same everywhere and it is worth repeating here because these buildings are old enough for it to be urgent. A sprayed roof goes over an existing one where the deck underneath is sound and dry, which is far cheaper and much less disruptive than a tear-off above an operating shop. Once the deck has taken water the option starts closing, and on a building with a trading business underneath it, a tear-off is not just a cost, it is days of disruption to somebody's income.
Spray Foam Roofing Stony Plain: Common Questions
Can the roof be done without disturbing a mural on the wall? Then the parapet and the drainage are planned around it, and that is settled at the survey.
How is a roof detailed where it ends at the neighbour's wall? That is normal on the blocks here. The junction is detailed to work whether or not they act too.
Does the old roof come off? Usually not where the deck is dry, and over a trading business that matters more than the cost.
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