Roof Sheathing 32 16 Thickness

Mill thickness declaration reference standards performance category mill number 5 0 specification 1.

Roof sheathing 32 16 thickness.

Brows our selection of plywood and lumber at the plywood c. Sheathing should be a minimum of 19 32 inch thick. With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Never attach roof sheathing with staples. A structural wood panel composed of a d grade or better face back and inner plies cross banded for strength. Apa rated osb sheathing roof panels performance category apa span rating allowable live load for roofs psf 3 8 24 0 30 7 16 24 16 40 15 32 32 16 70 1 2 32 16 70 19 32 40 20 130 23 32 48 24 175 1 1 8 48 oc 290 performance category replaces the nominal panel thickness live load for 24 oc span conditions. You need to find a sheathing with a span rating of at least 32 16 which means either 15 32 or 1 2 thick osb.

8d ring shank nails should be used instead. 10 psf dead load assumed. Apa rated sheathing 2. Adhesive bond classification 5.

Minimum roof sheathing thickness excerpt roof sheathing thickness rafter truss spacing 24 in. T g edges 5 1 sample specification apa rated sheathing 15 32 performance category 32 16 exposure 1.