Roof Sheathing Thickness 24 Oc For Snow Loads

Sheathing should be a minimum of 19 32 inch thick.

Roof sheathing thickness 24 oc for snow loads.

Applies to panels 24 inches or wider. Nominal panel thickness table b assists in calculation of geometric cross sectional properties. Huber s zip system sheathing which we are using on the fhb house has a span rating of 24 16 for 7 16 in. Support spacing when the panel is used for subflooring.

For rafters or 16 in. It will support roof. The second number is the maximum o c. The thickness required by josh s circumstances are good for roof snow loads of up to 70 psf again spanning 24.

A panel marked 32 16 may be used for roof sheathing over supports spaced up to 32 inches o c. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Uniform load deflection limitations 1 180 of span under live load plus dead load 1 240 under live load only.

The first number is the maximum on center o c support spacing in inches for roof sheathing. Uniform loads psf on apa rated plywood sheathing. Floor and roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. That means it can be used at 24 in.

24 16 teco sheathing span. For subfloors zip s 1 2 in. The applicable section properties table c can be divided into load capacity to. What about the roof sheathing at 24 in.

Never attach roof sheathing with staples. For the curious 7 16 osb has a span rating of 24 16 and with supports every 24 inches is good for a roof live load of 40 psf pounds per square foot with a 10 psf dead load. 24 oc 0 719 0 750 32 oc 0 875 1 000 48 oc 1 125 a the values in this table correspond with those. 8d ring shank nails should be used instead.

Panels are rated 32 16. Multi span normal duration of load dry conditions panels 24 inches or wider span rating b load governed by c strength axis a perpendicular to supports span center to center of supports inches parallel to supports span center to center of supports inches 12 16 19 2 24 30 32 36 40 48.