Roof Sheathing 32 16 Thickness

Sheathing should be a minimum of 19 32 inch thick.

Roof sheathing 32 16 thickness.

Never attach roof sheathing with staples. 140 wind speed mph 150 mph 160 mph minimum sheathing thickness inches exposure b 7 16 24 16 15 32 32 16 19 32 40 20 minimum sheathing thickness inches panel span rating exposure c 19 32from asce 7 40 20 19 32 40 20 19 32 40 20. 8d ring shank nails should be used instead. With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible.

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. 10 psf dead load assumed. 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. A structural wood panel composed of a d grade or better face back and inner plies cross banded for strength.

Brows our selection of plywood and lumber at the plywood c. Adhesive bond classification 5. T g edges 5 1 sample specification apa rated sheathing 15 32 performance category 32 16 exposure 1. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Mill thickness declaration reference standards performance category mill number 5 0 specification 1. Apa rated sheathing 32 16 span rating 15 32 inch 4x8.