Thickness Of Roof Sheathing

A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather.

Thickness of roof sheathing. Required sheathing thickness for roofing important factors. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load. Loads will vary with the. It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads.

1 inch 25 4 mm. That s considered to be the minimum. And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.

That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. Minimum thickness most roofs will be sheathed in plywood at least 3 8 inch thick. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. The common grade of plywood for roof sheathing is cdx.

Several factors must be considered when determining appropriate roof sheathing thickness such as the. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Zip system roof assembly combines our revolutionary integrated sheathing and flashing tape or liquid flashing to provide a sealed roof for protection against moisture intrusion during construction or if high winds strip the roof covering away. Roof sheathing materials plywood.

Some departments do not have the man power to do roof sheathing inspection inspectors can not see everything and assume that the builder knows enough to do some things right. If you re in search of quotes for a roof sheathing job improvenet can put you in touch with up to four local contractors for free. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Comes in standard 4 by 8 foot sheets is strong durable and relatively light.

It also holds roofing nails well.