suspended slab floor heat

hr

good way to insulate those is with spray foam from below, IMO. Need to check fire ratings, etc on the product you spec for compliance with codes. Multiple unit dwellings may have tougher codes for this.

hot rod

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Oly

suspended slab floor heat

DEAR READERS,
I'VE BEEN ASKED TO PROVIDE BUDGET #'S TO INSTALL IN-FLOOOR HEAT IN A SUSPENDED SLAB FOR A MULTIPLE UNIT DWELLING. THE SLAB IS TO BE 4" THICK CONCRETE, POURED OVER STEEL PAN DECKING, SUPPORTED BY STEEL TRUSS-JOISTS. ALL THREE FLOORS OF HEATING HAVE HEAT (CONDITIONED AREAS)UNDER THEM.
MY BIGGEST CONCERN IS INSULATING AND CONTROLLING OF THE SLAB MASS.IS THERE A "FITTED" INSULATION FOR THE UPPERSIDE OF THE DECKING AVAILABLE? DOES ANYONE HAVE ANY EXPERIENCE WITH THIS TYPE OF INSTALLATION? GOOD OR BAD? PLEASE ADVISE.
THANK YOU, OLY

Oly

know of any?

know of any foam sprays manufacturers or submittal data?

oly

hr

I used icynene

in my shop and office.

Just type icynene into your browser. Here is one site that came up www.foam-tech.com

It's a Vermont company with lots of info at their page.

hot rod

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Unknown

if you want to control the mass well, indoor feedback is the way to go if you don't have tooooo many zones.

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Weezbo

Spray foam is only way to roll.

even though the decking and masonry isnt your job you be well served spending some job site quality time doing an inspection one more time prior to the pour...

Tim Doran

Lite Deck

You may want to suggest that the engineers look at a product called Lite Deck. It replaces the corrigated decking with a preinsulated form.

Tim D.

Oly

Thanks for the suggestions. This helps.