Ceiling spray foam insulation in Fort Macleod takes two forms, and the interesting one is the upper floor of an old masonry block. On the main street the ceiling of the top storey is frequently the only thing between the room and a plank roof deck, with no attic in between and no obvious way to get at it. That is a different problem from a house ceiling with a roof space above it, and it gets a different answer.
When the ceiling is also the roof
Behind a parapet, these buildings have a flat or very shallow deck of planks on timber joists. The finished ceiling hangs below those joists. There is no attic, no ventilation path worth the name, and in some buildings nothing at all in the joist space.
That makes the ceiling plane and the roof assembly the same assembly. You cannot insulate the ceiling and ventilate above it, because there is no above. The practical options are to insulate the underside of the deck from within the joist space, or to deal with it from the roof side when the roofing is replaced, or to drop a new insulated ceiling below the old one and lose some height.
Which one is right depends on what the finished ceiling is.
Pressed tin, and why that changes the plan
A good number of these upper rooms have an original pressed metal ceiling, sometimes hidden above a later suspended grid. Where that exists it is usually the thing the owner most wants to keep, and it is also the thing that makes working from below awkward — tin panels come down in pieces and do not go back up invisibly.
So the sequence matters. If the roof is due, do the insulation from above as part of the roof work and the tin is never touched. If the roof has twenty years left, the honest options are to work through limited openings in the joist space or to build a new ceiling under the old one. We would rather tell you that at the quote than discover it halfway through.
The house version: a plaster ceiling and a shallow attic
On the residential stock the ceiling is lath and plaster, held up by century-old nails, with a shallow low-pitch attic above. Here the ceiling plane is the air barrier of the house, and it leaks everywhere a service passes through it — the stack, the chimney chase, the old flue thimbles, the gaps at the top of the partition walls, the trap-door opening.
Sealing those from above with foam is small work with a large effect, and crucially it does not disturb the plaster. Depth goes on afterwards. Done in the other order, the depth hides the holes.
Where the ceiling is open to a stair
Old houses and old commercial buildings share a feature: an open stair running from the lowest level to the top. That means the ceiling plane has a large permanent opening in it, and the whole building behaves as one tall volume. Sealing a ceiling at the top of a stair well makes a bigger difference than its area suggests, because that is the point where the stack effect delivers.
What we need to know before quoting
Whether there is a roof space above the ceiling or not. What the ceiling itself is made of and whether it has to survive. When the roof was last done and when it is next due. And what passes through the ceiling plane — every pipe, flue and duct, including the ones that are no longer connected to anything.
Closed-cell at roughly R-6 to R-7 per inch is what goes against a cold deck; open-cell belongs in an interior ceiling where sound is the aim. We quote the job, schedule it and stand behind it.
Ceiling Spray Foam Insulation Fort Macleod: Common Questions
There is no attic above our ceiling. What then? Then the ceiling and the roof are one assembly. It gets insulated from inside the joist space, from above during a re-roof, or by building a new ceiling below the old.
Can you work around a pressed tin ceiling? Yes, but the best time is during a roof replacement, when the work happens from above and the tin is never disturbed.
Why seal the ceiling before adding depth? Because insulation does not stop air. Depth laid over open penetrations sits on top of the actual problem.
How much does ceiling spray foam insulation cost in Fort Macleod? It follows sprayed area and thickness, and on an upper storey with no attic the access route is the main variable. Working from above during a re-roof is normally the cheapest version.
How do I choose a ceiling spray foam contractor in Fort Macleod? Ask what they intend to do about access and about the existing ceiling finish. On these buildings that answer is the quote.
Size the assembly with the R-value calculator, then get a free Fort Macleod quote. More on Ceiling Spray Foam Insulation Alberta province-wide.