Is Roof Sheathing Required

Nails from sheathing to ridge board roof sheathing ridge board ridge board joist or truss joist or truss roof sheathing vent holes on each side of ridge board.

Is roof sheathing required.

Testing of panel uplift resistance following hurricane andrew led to significant changes in prescriptive roof sheathing nailing requirements throughout much of the u s. Rafters run from the peak of the roof. Wood structural panel roof sheathing shall be bonded by exterior glue. The minimum plywood for roofing.

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 comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Roof sheathing conforming to the provisions of table 2304 7 1 2304 7 2 2304 7 3 or 2304 7 5 shall be deemed to meet the requirements of this section. Roof sheathing or decking is one of those elements.

The typical thickness range for sheathing is 3 8 to 3 4 inch. If roof sheathing is cut and removed to achieve an air slot continuity and diaphragm action are affected. 8d ring shank nails should be used instead. Note holes should not remove more than half of the sheathing section note.

Solid sheathing required for wood roofs in high wind areas. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Sheathing should be a minimum of 19 32 inch thick. This is required in areas of high wind or seismic activity and wherever else a solid roof diaphragm is required by code.

As a result most nailing patterns in high wind areas require 8d nails at a maximum of 6 inch spacing along all framing members. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. Solid sheathing is also recommended in areas subject to windblown snow.