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rnortman

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Posts:94

07/13/2008 10:54 AM
Posted By cmkavala on 07/13/2008 9:51 AM Ratman; regardless of system you will need a center bearing beam. I don't think 6" - OSB wiil make it 14 ft., 6" steel will with a 35 lb. load @ L /240 or 8" steel will go 14 ft. with 45 lb. load @ L /240 and an underlayment is advisable. Steel is also available in one 28 ft. piece He mentioned that he's using 2x10 floor joists 24" OC, and therefore not relying on the structural capacity of the SIPs at all (except to span 24" -- not really a challenge). Although, I don't think 2x10's can span 28ft? He said he had engineered it as if it were a conventional floor, though, so perhaps he already has a midspan support in there.

cmkavala

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Posts:807

07/13/2008 11:02 AM
You may be correct, I did'nt interpret it that way, but if so would be a waste of money to use SIPs as floor deck

Chris Kavala chris@southernsips.com 1-877-321-SIPS

Ratman

Registered Users

Posts:18

07/13/2008 8:08 PM
your both correct. I'm sorry I had left out the details of the structural design. I do have a center glulam beam that supports the mid span. I have this designed with heavier dead loads than conventional designs due to the requirments to support an office with a library. The point I was trying to convey was that I am putting the SIP's on the floor along with a 5/8 T&G underlayment laminant to act as thermal, sound as well as fire insulation. as an additional note: when placing the 5/8 underlayment, I made sure to overlap the seams of the SIP's.

Ratman

Registered Users

Posts:18

07/13/2008 8:25 PM
Sorry, I made an error in the previous responce.. I meant to say a heavier than normal live load..

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