Basement spray foam insulation in Morinville divides on the wall itself. On the older half of the town the foundation is frequently block, and on the newer half it is poured concrete with an insulated stud wall and a poly sheet already in place, and those two starting points lead to different work.
A block wall behaves differently from a poured one
Block is hollow, its cores connect vertically, and air and moisture can move through the wall in ways a solid poured wall does not allow. That matters at the top, where the cores are open to the floor structure unless somebody capped them, and it matters at any point where the wall has been patched. A layer applied directly to the inside face is what closes that path, and it is a different specification from insulating a poured wall even though the finished room looks the same.
The stud wall somebody built in front of it
On the older half the basement was frequently finished at some point by a previous owner, with a frame standing an inch or two off the wall and insulation between the studs. That gap is the problem. It connects the cold wall to the room, air circulates in it, and anything held in the cavity is on the wrong side of that circulation. Opening it up is most of the labour on a Morinville basement of this type, and it is the reason these quotes are larger than people expect.
On the newer half the wall is usually not the item
Where a poured wall already has a code-standard assembly against it, the wall is rarely where the money should go. The items worth checking are the top of that assembly where it meets the floor above, the corners where two walls meet, and any point where a service enters below grade. Those are the places where a continuous system stops being continuous, they are quick to look at, and on this half of the town they are usually the whole job.
The windows are small, old and in a hole in the ground
On the older half the basement windows are the original ones: small, set in a well, frequently with a frame that has moved and a well that fills with snow and leaves. That is a cold surface, a leaking frame and standing water all within a few centimetres of each other, and it sits below the level of anything else in the room. Sealing the wall around the opening and dealing with what the well is doing has to happen at the same time as the wall itself, because a Morinville basement treated everywhere except its windows still has its worst surface untouched.
Basement Spray Foam Insulation Morinville: The Covering Requirement
Foam in a basement is covered by a thermal barrier, which in a finished room is the drywall going back on, and that applies equally on both halves of this town. It is worth naming early because on the older half the making good is a large share of the price and on the newer half the covering is usually already there and only has to be reinstated where it was opened. More on thermal barrier vs ignition barrier.
Basement Spray Foam Insulation Morinville: Common Questions
Can a block foundation be insulated? Then the wall itself can move air, and the top of the cores is where that shows up.
What if there is a finished wall in front of it? Opening it is most of the labour, and what is behind it decides the rest of the quote.
What if it is poured concrete with poly already on? Then check the top of the assembly and the corners rather than the wall.
Size the assembly with the R-value calculator, then get a free Morinville quote. More on Basement Spray Foam Insulation Alberta.