I’m converting my garage into a hobby woodshop. How do I best insulate the walls which are uninsulated concrete block?
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Well, a partial answer is that exterior insulation would be a whole lot more effective than interior insulation. Furring, rigid foam board, and siding is one option. Stucco instead of siding is another. Depends on the eaves, doors, etc.
For ease, hard to beat a simple rigid foam sandwich with plywood on top.
You can use long tapcons right through the foam. No messing with studs or furring strips this way. Complete thermal break (well, except for screws themselves...).
Plywood walls are versitile for mounting/hanging things in a shop.
Consider painting ply a light color for a brighter workspace.
I would be concerned about the cold floor. Can take forever to heat up a slab.
Insulating on the outside is no doubt the best way to go. Unfortunately, it is not possible without major surgery to the house so that will have to wait.
Foam and plywood sandwich! Excellent idea. And with the snow pouring down outside, much more appealing to stay indoors. You are right about the slab being cold. Unfortunately it will have to stay because we still need to pull a car in from time to time.
Thanks to both of you,
Torsten
Radiant floor heat gets along with cars just fine. A warm car is a happy car.
Happy feet and happy tires - thanks for the tip