Here is a techincal doc that discusses the issue of OSB and screw pullout strength. You can use OSB and fur strips which would help with staying on the 12x12 pitch while roofing but you can not use standing seam and would have to change to U or R panel roofing.
http://www.fabral.com/technical/Residential.pdf
Last edited by rockytopper; 01/07/09 02:17 PM.