Roof Sheathing Detail

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Roof sheathing detail.

Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. Refer to the details. Roof sheathing felt split sheet note. 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.

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. 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. 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.

Detailing for performance roof detail clipped eave figure 9 2. 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. Detailing for performance chapter 9 5 rake at wall exterior. The roof sheathing supports gravity loads such as the roof live load snow load and vertical uplift loads created by wind pressures.

Read on to learn the 3 top tips for seam sealing and transitional details. Plywood sheathing delivers outstanding stiffness strength and versatility. 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. 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.

Roof sheathing is the material that goes on top of your roofing structure including the trusses and beams that the roofing system is constructed on. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. For a dimension see table 3 1. Chapter 9 4 wood.

It adds proven performance and durability to new homes room additions and renovations.