Residential Party Wall Construction Roof Sheathing

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

Residential party wall construction roof sheathing.

Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. 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. Livered at the building site. This module also provides for alternate 24 inch spacing of floor wall and roof fram ing where floor and roof trusses are used and accommodates 24 inch spacing of studs where wind loads.

The area separation wall is designed to allow for collapse of 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. Flashing at termination of roof covering over common wall. Cripple walls with a stud height less than 14 inches 356 mm shall be sheathed on at least one side with a wood struc tural panel that is fastened to both the top and bottom plates in.

And panel sheathing products. Preparation of a construction. 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. Three panel thicknesses with various dimensional options let you choose the right panel for each design and application.

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. Structural roof and wall sheathing from each unit fastened to the common wall framing. Foundations supporting exterior walls or common walls.

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. An accurate method for engi neering diaphragms has evolved from analytic mod els and extensive testing and. All sizes are engineered to provide optimal roof and wall performance. 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. Townhouses separated by a common wall as provided in section r302 2 item 1 or 2.