Concrete garage floor insulate?

[willblue]

Hey, do I need to insulate a garage floor?

I am converting the detached garage to a proper room.

The walls + roof will be insulated, the problem is I can't raise the floor much.

It is just concrete, so will probably put underlay and laminate on top.

 

[scottl]

Did you raise it? I'd be just as concerned about moisture than heat, but you could cut a 2x4 in half to get 2x2's. Cover the concrete with plastic. lay out a floor system, 16" on center, using the 2x2's and put 1-1/2" thick styrofoam insulation in between them. Cover with 1/2" OSB and lay your flooring. Even 3/4" thickness would be better than nothing. But main thing is the plastic vapor barrier regardless of anything else you may or may do.

 

[He who knows]

Hey, do I need to insulate a garage floor?

I am converting the detached garage to a proper room.

The walls + roof will be insulated, the problem is I can't raise the floor much.

It is just concrete, so will probably put underlay and laminate on top.

Building regs approval.....