Ceiling spray foam insulation in Barrhead is the job for every ceiling that is not the floor of a walkable attic. With roughly three in four local homes built before 1991, there are a great many of them: the enclosed back entry with a shed roof over it, the veranda that got roofed in and became a family room, the sunken living room with a sloped ceiling added in the seventies, and the dropped ceiling somebody installed in the eighties over whatever was there before.
The back entry is the Barrhead classic
Almost every older house in this town has grown a boot room on the back or the side. It is where firewood, coats, chainsaws and five pairs of boots live, and it was built with whatever was to hand: a shallow shed roof tied in under the eave of the original house, a thin ceiling cavity, often no ventilation path at all, and a floor over a slab or a shallow crawl. It is the coldest room people walk through every day, and it is also the air lock that protects the rest of the house, so when it performs badly the whole back half of the house feels it.
That ceiling is normally a two-by-six or two-by-eight cavity with a few inches of batt in it and no way to vent. Sprayed closed-cell against the underside of the sheathing turns it into a deliberately sealed assembly, and it is the one place where getting a real number into a very shallow depth earns its keep, because six to seven R per inch is what makes a thin ceiling worth insulating at all.
A ceiling with nothing above it behaves nothing like an attic
The difference is volume. A ceiling under a proper attic is backed by a large air space, so a certain amount of leakage gets diluted and eventually carried off. A ceiling that is the underside of the roof deck has a rafter cavity and nothing else, and anything that gets into it has nowhere to go.
Around here that is worse than it is on a windswept site. Snow accumulates on these roofs rather than being scoured off them, which keeps the deck above a thin cavity warmer and wetter than it would otherwise be; and on a sheltered lot there is very little wind at roof level to drive a vent channel even where one exists. The assemblies that cause us trouble are nearly always the ones that were built as vented and were sealed up by accident — a channel blocked by batt, a soffit filled solid, a ridge vent over a cavity that does not reach it.
The dropped ceiling, and the chase through it
Two other things turn up often enough to mention. The first is the second ceiling: a grid or a strapped-and-boarded surface installed below the original, usually to hide cracked plaster or to run wiring. Whatever is between the two is anybody's guess until it comes down, and it is frequently where frost has been forming for years without anyone seeing it.
The second is the chimney chase. Houses of this age commonly have a framed shaft that carried a wood or oil flue, and whether or not it is still in use the hole through the ceiling plane around it tends to be open. On an attic that is a leak. On a sloped or flat ceiling with no attic above, it is a direct opening into a cavity with no ability to dry, and it has to be closed properly and safely before any insulation goes anywhere near it.
We take care of the work
There is no handing you off here. We quote and manage ceiling spray foam insulation Barrhead start to finish, and our crews do the spraying.
Ceiling Spray Foam Insulation Barrhead: Common Questions
Why is the back entry always the coldest room? Thin roof cavity, a floor over cold ground, a door to the outside that opens dozens of times a day, and usually no insulation worth the name in the ceiling. It is also doing the most work of any room in the house.
Can a sloped ceiling be insulated without opening it? Not dependably. Filling a shallow cavity you cannot see into is how vent channels get blocked, and opening it is what lets anyone find out what is actually in there.
Is a sealed roof assembly acceptable? Yes, when it is built that way on purpose with enough adhered foam against the deck. The problems come from vented assemblies that were accidentally closed off.
How much does ceiling spray foam insulation cost in Barrhead? It prices per board foot of sprayed area at whatever depth the cavity allows, with taking the finished surface down and putting it back as separate items. On a sloped ceiling those two items are a real share of the total.
How do I choose a ceiling spray foam contractor in Barrhead? Ask what the plan for ventilation in that cavity is, and get the answer before anything is opened up. Half-vented is the one result worth avoiding.
Size the assembly with the R-value calculator, then get a free Barrhead quote. More on Ceiling Spray Foam Insulation Alberta province-wide.