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01-30-2011, 03:40 PM
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#1
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JB MUD 2010 Grad
Join Date: Oct 2004
Location: Pagosa Springs, Co
Posts: 115
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Natural Stone Specs
Got a install coming up with rather large French Limestone. I can't find any info on installation specifications other than the stuff for ceramic in the tcna book. I know the marble institute has thier book coming out soon, but I need some info a little sooner. Specifically expansion joints over radiant flooring.
Limestone is almost 7/8" thick, 16x24" running bond, about 500 sq' over gypcrete, Hydroban, 220, and spectralock are the plan so far. Room is about 16x30 with two small closets and a hall off one end.
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Brian Collabolletta - Luv-Custom Tile, Llc
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01-30-2011, 10:43 PM
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#2
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Utah Tile Contractor
Join Date: Mar 2006
Location: Riverton, Utah, Salt Lake City
Posts: 2,276
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May not be what you are looking for but call your laticrete rep and ask for what they would recommend. Since you are using their stuff, see what they recommend. I can't imagine them not giving you great advice.
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Bryan
EX Tile Contractor
Positive Tile and Stone
Salt Lake City, Utah
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01-30-2011, 10:48 PM
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#3
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Moderator emeritus
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 97,201
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Awww, Brian, quit whinin' and toke up your three or four hunnert bucks and buy the MIA book. 
Unless the price has gone up again. 
Mostly I'd agree with Bryan, though. Since it's all specced with Laticrete products, get a laticrete spec for the movement accommodation, too.
And I honestly expect this is one of those areas where the MIA is likely to refer you to the ANSI specs for ceramic tile installation. But I can't prove that.
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01-30-2011, 11:03 PM
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#4
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Registered User
Join Date: Apr 2010
Location: Jackson, MS
Posts: 920
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The laticrete rep is probably gonna recommend some 3701 with that 220 or maybe it's just me. 
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Donnie
I dream of a better tomorrow, where chickens can cross the road without having their motives questioned.
Ralph Waldo Emerson
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01-30-2011, 11:44 PM
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#5
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Moderator emeritus
Join Date: Jul 2001
Location: Boerne, Texas
Posts: 97,201
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And that would address the expansion joints just how, Donnie?
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01-30-2011, 11:54 PM
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#6
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Registered User
Join Date: Apr 2010
Location: Jackson, MS
Posts: 920
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Well of course I agree with you on them expansion joints CX. I just threw in the part about the 3701 as a freebie or something. 
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Donnie
I dream of a better tomorrow, where chickens can cross the road without having their motives questioned.
Ralph Waldo Emerson
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01-31-2011, 07:57 AM
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#7
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Gonzo!
Join Date: Apr 2008
Location: Colorado
Posts: 2,315
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When getting info from whatever rep or tech dept., I would also inquire whether thermal striping is a concern.
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Matt
"Shut it down!"
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01-31-2011, 08:46 AM
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#8
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da Man!
Join Date: May 2001
Location: Racine, WI.
Posts: 5,762
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The install method depends on whether it is a radiant or floor warming system, 8-12' is going to be the joint spacing recommendation.
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01-31-2011, 08:20 PM
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#9
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JB MUD 2010 Grad
Join Date: Oct 2004
Location: Pagosa Springs, Co
Posts: 115
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It's an electric floor warming system, where the wires are secured to the subfloor with wire clips then poured over about 1 3/4" with a light weight concrete. I know ceramic is usually 8-12', but I wasn't sure if stone would be the same or not.
Kelly there aint no way I'm gonna drop a few hunnerd bucks on a book when we got Vegas comin up
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Brian Collabolletta - Luv-Custom Tile, Llc
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01-31-2011, 08:33 PM
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#10
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Registered User
Join Date: Aug 2009
Location: Chicago NW Burbs
Posts: 1,229
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I question 1-3/4" of pour OVER an electric mat. Most companies like their wire to
be no deeper than 1" from the TOP of the tile
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