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insulating block wall
- Thread starter kkosh
- Start date
Huntmaster86
Well-known member
are you going to heat the garage? are you installing radiant heat in the slab? installing polystyrene on the outside of the walls is better than nothing, spray foam, although more money, would be best if you plan on insulating the whole garage and heating it.
i installed it on the 3 courses of block on the outside of my garage, then screwing concrete board on to protect it, but i have radiant heat in my garage
i installed it on the 3 courses of block on the outside of my garage, then screwing concrete board on to protect it, but i have radiant heat in my garage
Radix2
Well-known member
Have you considered having the wall built using ICFs ( insulated concrete forms)?
It would come out already insulated.
It would come out already insulated.
Radix2
Well-known member
You need to add your location so that people can consider your climate in their responses.
Assuming that you are in a cold climate, the most important (highest heat loss ) area to insulate are the sides of the foundation Wallls - it prevents cold from getting under your floors, and since it is in direct contact with the frozen earth, the ability to transfer heat is very high.
Assuming that you are in a cold climate, the most important (highest heat loss ) area to insulate are the sides of the foundation Wallls - it prevents cold from getting under your floors, and since it is in direct contact with the frozen earth, the ability to transfer heat is very high.
Radix2
Well-known member
So this block will be mostly buried ? The block foundation is 8 feet deep? Back filled on both sides to the same depth?
I live in Michigan so it can def get cold. The 3/4 of the block foundation will be exposed. It is build on a slope so the right side will be completely exposed and the left side buried. Most of the back will be exposed. Sounds like it is worth doing? Maybe also do the paneling on the top before they pour the concrete floor?
Radix2
Well-known member
I live in Michigan so it can def get cold. The 3/4 of the block foundation will be exposed. It is build on a slope so the right side will be completely exposed and the left side buried. Most of the back will be exposed. Sounds like it is worth doing? Maybe also do the paneling on the top before they pour the concrete floor?
I am not sure why you cannot insulate on the the outside (I would definitely insulate the inside using either one of the foam basement wall systems or by building a framed wall inside the block).
Your brick ledge should be about at the final grade on the outside (normally face brick is not buried in the ground) - so below the brick ledge and into the ground should be able to be insulated with foam board - this is the highest heat loss area.
Make sure that your contractor is properly sealing, draining, grading the wall where the block is acting as the retaining wall so it stays nice and dry.
ForceFed70
Well-known member
People have the same problem with poured concrete walls.
I chose to add 2x4 framing against the walls, then filled the cavities with insulation. Chances are you're going to want to add shelving, etc along those walls. The 2x4 framing not only allows you to insulate, it gives a great surface to attach to as drilling and anchoring in block is a PITA and destructive.
Also, you'll have a ledge at the top of your 2x4 wall which will now do double duty as a perimeter shelf.
I chose to add 2x4 framing against the walls, then filled the cavities with insulation. Chances are you're going to want to add shelving, etc along those walls. The 2x4 framing not only allows you to insulate, it gives a great surface to attach to as drilling and anchoring in block is a PITA and destructive.
Also, you'll have a ledge at the top of your 2x4 wall which will now do double duty as a perimeter shelf.