Yep, concrete over insulation (styrofoam or TekFoil insulation or both
if using radiant heat in the slab) will work fine

As to the wall and ceiling insulation, the more the better. The
foamed in insulation will probably give you the BEST "r" value
Also, think about having the walls and ceiling made out of something
like IsulSpan would be even better, and you can get the thickness you
want/need for the insulation level you desire. Using it for the roof
will also let you have nice tall ceiling. Check out the TOH Milton
project where they built Norm's Deam Workshop using InsuSpan walls and
roof

John

On Sun, 20 Jun 2004 15:31:43 -0400, "TDUP"
wrote:

Hi to all,

I want to build a 24x32 workshop and was wondering what kind of flooring I
should use. I live in Michigan and it's cold 1/2 the year. Has anyone used a
concrete slab over a Styrofoam or some other type of barrier? What
insulation value should be in the ceiling or walls?

Thanks for any help.

Tim