Roof Sheathing Detail

Plywood sheathing delivers outstanding stiffness strength and versatility.

Roof sheathing detail.

Installation manual zip system sheathing wall and roof zip system sheathing and tape fact sheet integrated sheathing or housewrap white paper zip system brand brochure. Roof detail roofing. Roof sheathing felt split sheet note. Refer to the details.

More product details close. 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. The trusses and beams of the roof give the roof its initial pitch and structure and then the sheathing is applied so the actual underlayment and roof covering can be applied. Chapter 9 4 wood.

Detailing for performance roof detail clipped eave figure 9 2. It is an excellent choice for light frame wall and roof assemblies in weather protected applications. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. Also the roof sheathing working in conjunction with the roof framing must function as a diaphragm to transfer lateral loads to the building s shear walls.

Roof sheathing products like gp s thermostat osb roofing boards and plytanium plywood roof sheathing provide heat and moisture resistant properties. When the roof sheathing is used as a structural diaphragm as it typically is in high wind and seismic hazard areas the structural integrity of the diaphragm can be compromised by a continuous vent see figure a below. The roof sheathing supports gravity loads such as the roof live load snow load and vertical uplift loads created by wind pressures. Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to al low flashing laps to face away from wind driven rain.

For a dimension see table 3 1. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. Include roof pitch roof geometry slope length and climatic factors such as heavy snowfall or rainfall. 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.

Detailing for performance chapter 9 5 rake at wall exterior.