New Jersey home inspection NJ home inspectors perform  Certified New Jersey home inspections in NJ.

EXCESSIVE ROOF OR SUB FLOOR SHEATHING SPAN: 
Plywood sheathing usually has a stamp on its bottom side which indicates the maximum span allowable for the particular piece. Almost universal is the 16/32 stamp on 1/2" plywood or Orientated Strand Board (OSB) sheathing. This indicates up to 32" span (length wise) for most light weight loads. 1" x 6" roof sheathing should not be spanned more than 24" under most circumstances. In older construction 1" x 6" roof sheathing will often be spanned up to 32". If the over-span proves to be a problem, such as when sagging or draped roofing or sagging draped floors are noted, rafters or joists may need to be added. It may also suffice to install blocking between the rafters or joists also. Contact a General Contractor for additional information and assistance. 

The above information was provided by TWI Systems Copyright 1995-2005 1-800-553-5660

 

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This file was last updated on Monday, 25-Aug-2008 16:28:55 EDT * Copyright © 2008 All rights reserved by: Accurate Inspections, Inc. A New Jersey home inspection firm providing New Jersey Certified Home Inspections in NJ, by New Jersey Licensed home inspectors. Inspector of record Michael Del Greco, New Jersey home inspectors License GI 0121.
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