Roof Sheathing Thickness 16 Oc

8d ring shank nails should be used instead.

Roof sheathing thickness 16 oc.

Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. We re in dallas so we don t engineer for tremendous live loads for an asphalt shingle and we feel comfortable with 16 oc rafter spacing and 7 16 osb decking. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. Most roofs will be sheathed in plywood at least 3 8 inch thick. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Never attach roof sheathing with staples. Loads will vary with the pitch of the roof. Nominal panel thickness table b assists in calculation of. Osb roof decking thickness 7 16 1 2 or 5 8 currently we space rafters 16 oc and use 7 16 osb with h clips.

The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. 24 16 teco sheathing span.