A bonus room is the room over the garage, and it is cold for a reason that has nothing to do with the room. Bonus room spray foam insulation in Athabasca is almost always a floor job described as a heating complaint. The owner says the upstairs will not warm up, or that one child's bedroom is unusable in January, and the thing that needs attention is the surface they are standing on rather than the walls they are looking at.
The room has five exposed sides instead of two
A normal upstairs bedroom has one or two exterior walls and heated space below. A bonus room has two or three exterior walls, a sloped or flat ceiling against the roof, and a floor over an unheated garage. That is most of its surface area facing something that is not heated. No amount of heat delivered into a box like that makes it comfortable if the box is losing on five sides, and the losing has to be reduced before the heating can keep up.
The garage ceiling is the main event
The floor assembly over a garage is where the largest single gain is. The garage is at or near outdoor temperature for most of the year here, and in this climate that is a serious temperature difference held for a long time. Worse, the floor cavity is usually open at its ends to the exterior framing, so air moves into the joist space from outside and travels under the room. Spraying the underside of that floor seals the cavity and insulates it in the same pass, which is the only approach that addresses both at once.
The cantilever, if there is one
Many bonus rooms project slightly beyond the garage wall below. That overhang is floor framing with outdoor air underneath and nothing but a soffit panel closing it in, and it is routinely the coldest strip in the house. It is also easy to miss from inside, because from above it is simply part of the floor. We look for it specifically, since insulating the garage ceiling and leaving the cantilever open produces a room with one cold edge and an owner who thinks the work did not take.
The knee walls and the sloped ceiling
Where the roof slope meets the floor there are usually short vertical walls with attic space behind them, and those are often insulated with batt that has fallen, slumped or was never fitted tightly. Behind them is attic, meaning outdoor temperature, so they are exterior walls in every way that matters. They are also a classic air path from the roof space into the room. Those and the sloped ceiling above come next after the floor.
Doing the garage at the same time, or not
Insulating the garage itself is a separate decision. If the garage is going to be heated or tempered, the floor assembly above has an easier job. If it is not, the floor still needs to be treated as an exterior surface, which is the usual case. Either way the garage door and the wall between garage and house are their own items and should be priced as such rather than folded into a vague allowance.
Why this room is a bigger deal in a long winter
A bonus room in a four-month winter is an annoyance. In a season this long it is a room that is effectively out of use for a third of the year, and in a town where people sleep on different shifts it is frequently the room somebody has been given because it is at the far end of the house. That combination is why it comes up so often here, and why it is usually worth doing properly rather than in stages.
We take care of the work
We quote the job, schedule it and stand behind it, and our own installers do the work on bonus room spray foam insulation Athabasca. You deal with us from the first site visit to the last pass of foam.
Bonus Room Spray Foam Insulation Athabasca: Common Questions
Why is the room over the garage always the cold one? Because it is surrounded by unheated space on most of its sides, with the floor over a garage being the worst of them.
Will a bigger heat vent fix it? Rarely. Delivering more heat into a room that is losing on five surfaces changes the recovery time, not the comfort.
Do you insulate the garage ceiling or the garage? The ceiling, as the priority, because that is the surface between the room and the cold. Insulating the garage itself is a separate and later decision.
How much does bonus room spray foam insulation cost in Athabasca? It follows the floor area over the garage plus the knee walls and ceiling if they are included, at the thickness the framing allows. Any cantilevered section is quoted on its own because the access is different.
How do I choose a bonus room spray foam contractor in Athabasca? Ask whether the cantilever and the knee walls are in the quote. A quote that covers only the flat garage ceiling will leave a cold edge in the room.
Size the assembly with the R-value calculator, then get a free Athabasca quote. More on Bonus Room Spray Foam Insulation Alberta province-wide.