Roof Sheathing Thickness 16 Oc

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Roof sheathing thickness 16 oc.

Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Most roofs will be sheathed in plywood at least 3 8 inch thick. Nominal panel thickness table b assists in calculation of. 8d ring shank nails should be used instead.

The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24. 16 oc 0 594 0 625 20 oc 0 594 0 625 24 oc 0 719 0 750 32 oc 0 875 1 000 48 oc 1 125 a the values in this table correspond with those published in the 2005 edition of the. The typical thickness range for sheathing is 3 8 to 3 4 inch. 1 inch 25 4 mm.

Sheathing should be a minimum of 19 32 inch thick. 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. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. 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. Never attach roof sheathing with staples.