Roof Sheathing 32 16 Exposure Thickness

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Roof sheathing 32 16 exposure thickness.

Only 23 32 thickness advantech subflooring and 1 2 and 5 8 thicknesses of advantech roof and wall sheathing are included in icc es report esr 1785. Limitations and restrictions apply. Apa rated sheathing 2. 10 psf dead load assumed.

Structural i rated sheathing panels carry the same span ratings as rated sheathing panels of the same thickness e g 15 32 performance category perf cat structural i and 15 32 perf cat rated sheathing are both span rated at 32 16 and deliver the same capacity for most applications. 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. Actual weight may vary by mill.

8d ring shank nails should be used instead. 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. Minimum roof sheathing thickness excerpt roof sheathing thickness rafter truss spacing 24 in. 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.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. A structural wood panel composed of a d grade or better face back and inner plies cross banded for strength. Never attach roof sheathing with staples. Where to buy.

Visit the advantech residential builder warranty and or commercial property owner warranty for. The zip system product line is backed by a 30 year limited warranty and 180 day exposure guarantee. The typical thickness range for sheathing is 3 8 to 3 4 inch. Installation manual zip system sheathing wall and roof zip system sheathing and tape fact sheet.

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