So far all the approaches seem VERY expensive. Putting pipes in a slab of
cement also means it takes a long time to get any heat out of the system.
I'd put a grid of 2X4's down on 16" centers and lay plywood sheeting over it
unless you have a source of used wood like 2X6's. Recourse to a book or two
will say how thick it needs to be. You can drill holes in the 2X4's for the
pipes and put some kind of reflective material on the old floor.(mylar?) If
it's YOUR building and you know your not going to park a semi on the floor,
you can detrmine just what the load will be: 6000# vehicle= 2000# max over a
quarter square foot+/-. There are probably structural people on the list that
can give better numbers than I.
Michael @ Toad Manor
In a message dated 05/03/2000 6:20:21 AM Pacific Daylight Time,
scarlett@tubetechltd.com writes:
<< I've recently moved and I'm
planning to convert an old 20 X 40' drive shed
to a workshop. The existing cement floor has some
deep cracks and to remove this floor would be darn
near impossible, and I also want to install radiant floor
heating. So how about building a grid of say 3/4"
CS pipe to carry the glycol >>
|