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forresth 03-14-2010 05:25 PM

interior load bearing walls with a heated slab?
I am planning a house with radiant heat floors on a slab. my plan it to have 2 interior walls to be load bearing. do I need to put footings under them, or just make sure there are no heat pipes under them? or something in between?

Bob Mariani 03-14-2010 08:02 PM

load bearing walls need a footing.

jlhaslip 03-15-2010 01:23 AM

place the interior walls on footings and then add the radiant heat around them.

jomama45 03-15-2010 09:35 AM

Are you doing a "shallow, frost protected slab", or a frost wall with floor?

I would guess the latter, especially with heated floors in your climate. If so, you can either pour a concrete footing at the same time as the frost footings (which is the simpler approach IMO) and set a 1/2 course, 4" CMU block for the wall, OR pour a thickened, re-enforced grade beam into the floor under the wall location.

forresth 03-15-2010 12:21 PM

I think your sugested was about what I was thinking. I may tweak it some.

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