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Insulating Concrete Forms (ICFs)
6" cores vs 8" cores
Last Post 08 Aug 2007 07:44 PM by
icfcontractor
. 4 Replies.
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Ebuilder
New Member
Posts:10
02 Jul 2007 11:29 AM
Would anyone recommend using an 8" core or is a 6" core sufficient enough to build a two story home in the state of Arkansas. Please advise.
icfblocks
Basic Member
Posts:202
02 Jul 2007 08:38 PM
6" is sufficient for two story construction of single family dwellings. There may be some exceptions. We do most of our building above grade with 6" forms. We worked on a 4 story motel here in GA. and all forms were either 6" or 5".
Thanks,<br>Tom<br>www.advbuildingtech.com
larrydes
New Member
Posts:3
07 Aug 2007 11:07 AM
Am building a two-storey house in Manitoba and builder recomends 8" for basement walls and 6" for upper walls.
PatrickT
Basic Member
Posts:157
07 Aug 2007 07:23 PM
You really need to talk with an engineer of record. There are so many points that must be understood before anyone can make a determination. Some questions would be 1)basement?, 2) fill to what height? 3) soil type? 4) window arrangement between floors, 5) steel spacing/size/grade.
Patrick T.
icfcontractor
Basic Member
Posts:277
08 Aug 2007 07:44 PM
Ebuilder,
Patrick is correct that a local engineer would be your best resource. Here in the Pacific NW where we are in the worst siesmic zone and building on sand which has the worst carrying capacity, we are building a 4 story 6" core condo with concrete floors, concrete roof, and cantilevered concrete decks. So it can be done but you need to find an engineer that is comfortable with concrete construction. Engineers are like doctors they specialize in certain areas. You could go to a general surgeon for back surgery butt your results would vary greatly from going to a neurosurgeon.
ICF Contractor
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