Simple, sturdy thermal break?

[switchgear12470]

Most of the energy going to heating my garage will be lost through the slab, which is a considerable energy sink up here in Zone 6. I was thinking that some sort of floor covering that has a slight air gap could offer a small thermal break and insulating value. Something like the DMX floor underlayment.

It would need to be sturdy enough to drive/park cars on, and flat enough to not catch sawdust and debris. Has anyone come across something like this?

 

[Fav Onefour]

It seems hard to imagine that product doing enough to be worth the hassle.
How is the insulation in your walls and attic?

 

[mm08822]

Is the garage built yet?

 

[switchgear12470]

It seems hard to imagine that product doing enough to be worth the hassle.
How is the insulation in your walls and attic?

R49 in ceiling, R15 in walls

Is the garage built yet?

Yes

 

[duneslider]

Nothing thin is going to do anything to help this...

At this point not worth doing anything.