Residential Party Wall Construction Roof Sheathing

All sizes are engineered to provide optimal roof and wall performance.

Residential party wall construction roof sheathing.

If this were framed the way i would typically do it the unblocked but staggered roof diaphragm would have 240 allowable shear where with their method it would be 180. Nonstructural wall and roof coverings. However as an exception to constructing a parapet in the first two cases the firewall may also be terminated at the underneath of the higher roof as long as either fire rated roof sheathing or 5 8 type x drywall below the roof sheathing is provided for a width of 48 on either sides of the firewall. Flashing at termination of roof covering over common wall.

The big two aren t the only selections available however. Apa s diaphragms and shearwalls l350a has a good set of tables showing the strength of various blocked and unblocked sheathing methods. Preparation of a construction. Structural roof and wall sheathing from each unit fastened to the common wall framing.

It must either be continuous from the foundation to the underside of the protected roof sheathing or continue through the roof to form a parapet. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. 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. Diaphragms and shear walls are used in the lateral design of a building the structural system is termed a box sys tem shear walls provide reactions for the roof and floor diaphragms and transmit the forces into the foundation.

With integrated structural water and air management layers zip system products offer interchangeable options for optimal roof and wall performance. Livered at the building site. An accurate method for engi neering diaphragms has evolved from analytic mod els and extensive testing and. Three panel thicknesses with various dimensional options let you choose the right panel for each design and application.

Plywood and osb are largely considered the best wall sheathing choices because of their overall abilities to hold fasteners well create a strong bond between studs and provide some thermal advantages. And panel sheathing products. Townhouses separated by a common wall as provided in section r302 2 item 1 or 2. Structural fiberboard is one such option.

Foundations supporting exterior walls or common walls. An area separation wall can be used in townhouses up to four stories 44 tall and with all common floor ceiling heightsa.