Roof Decking Thickness 6 Oc

In the first half of the 20th century roofs in missouri were built with wood shingles.

Roof decking thickness 6 oc.

Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Nominal thickness decking not oc curring over supports when random length pieces are used shall a be matched tongued and grooved or b have metal splines inserted at ends so that loads may be distributed from end to end as well as across the planks. What is plank sheathing.

End joints in 2 in. 2017 fbc building 6 th edition 23 wood 2304 general construction requirements 2304 8. Controlled random layup two inch decking. Based on standard 16 oc joist spacing and type of material this may be the minimum allowable thickness.

The thickness of plywood used for roof decking depends on the roof slope the spacing of rafters and the weight of other material to be put over the decking as well as the design load the. Structures that already comply are exempt from this requirement i e. 8d ring shank nails should be used instead. 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. The typical thickness range for sheathing is 3 8 to 3 4 inch. 706 7 when a roof covering on an existing site built single family residential. 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.

Never attach roof sheathing with staples. Eight quarter or 8 4 or 2x e g 2 x 6 2 x 4. This is the most common decking board sold.