Roof Sheathing 32 16 Thickness

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.

Roof sheathing 32 16 thickness.

T g edges 5 1 sample specification apa rated sheathing 15 32 performance category 32 16 exposure 1. 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. With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. Brows our selection of plywood and lumber at the plywood c.

Minimum roof sheathing thickness excerpt roof sheathing thickness rafter truss spacing 24 in. Mill thickness declaration reference standards performance category mill number 5 0 specification 1. 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.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Adhesive bond classification 5. Apa rated sheathing 32 16 span rating 15 32 inch 4x8. Sheathing should be a minimum of 19 32 inch thick.

The typical thickness range for sheathing is 3 8 to 3 4 inch. 8d ring shank nails should be used instead.