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re: bar spacing

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You should be covered by following the IRC, especially if it has been adopted in the jurisdiction.  In theory, strictly speaking, if done per the IRC, then it should not need to be sealed...but then some jurisdictions may still require it.  Plus, if you mention that, then your client might want their fee back from you.  <grin>

The other thing to check would be to see if the ICF manufacturer has an ICC-ES report.  That is likely where their "beef" with your spacing was coming from.  If they do have a report, then in theory it is backed up by testing reviewed by ICC-ES as part of the review process...and was done per their Acceptance Criteria.

Personally, if it was me, I would stick to the ACI 318 spacing if it is the type of ICF with a solid concrete "layer" (as opposed to the "waffle" type).  But then I can be "bastard" on that kind of stuff...and I am not sure how much I really believe the IRC.  <grin>

Oh, this kind ignores any issues with regards to seismic and wind.  Sorry, had to toss in the disclaimer!  ;-)

Regards,

Scott
Adrian, MI

P.S.  My fingers are now tired from typing that in on my Treo.

 ..... Original Message .......
On Thu, 3 Sep 2009 09:36:21 -0600 "Jeff Hedman" <jeff_h(--nospam--at)lrpope.com> wrote:
>Andrew and Bill,
>
>I agree with what you are saying.  I don’t like to exceed the 18” spacing either.  However, the only reason I bring all this up is for the fact that this is such a small addition (864 sq. ft.) so the loads are really pretty low.  My numbers show the walls could work with #4 bars @ 24” o.c. each way other than it doesn’t meet the maximum spacing requirements.  Looking at IRC Table R611.3(2) it says for an 8’-0” tall 5.5” core ICF wall with 30 psf wind pressure I can use #4 bars @ 48” o.c. each way.   Now don’t get me wrong I would NEVER be willing to stamp anything with bars spaced that far apart.  But if calculation shows that bars @ 24” o.c. each way work and the IRC table says I can go to 48” o.c., are we really getting the client anything better with 18” o.c. spacing?  If this was a commercial building or even a large house, it would be 18” o.c. spacing period.  But with such a small residential addition, it sometimes makes you wonder, especially when calculations show that it will work spaced out more than 18”.  As far as the beer goes, I definitely agree, never light beer, and always bottles.  I usually have the beers with the “watered-down lagerish taste”, but being in Utah, I always have some good Utah microbrews on hand.  (Yes, they sell beer here).  Polygamy Porter or Cutthroat Pale Ale are a couple of good ones.
>
> 
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>Thanks for all the input.
>
> 
>
>Jeff Hedman, SE
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