Wood Roof Connection Details

The distance between two rainwater outlets in a gutter a drain channel or a valley is to be 30m or maximum 20m in the case of a roof deck made of timber and wood derivatives.

Wood roof connection details.

Wood in contact with masonry materials may absorb moisture present in the concrete masonry causing the wood to rot. Roof deck made of timber and wood derivatives. Simpson strong tie has been involved in the component industry for decades. Similarly hip and valley rafters provide the point of connection for roof rafters framed at angles.

In high wind i e greater than 110 mph three second gust or high seismic areas i e seismic design category. The focus of this project was on connections used with conventional light frame wood roof construction. Wood framed floors and roofs are common in residential and low rise construction. In this continuing education course connection options for.

With single course applications nails are driven one inch above the butt line of the succeeding course. The ridge board is non load bearing and merely provides the point of connection for the opposing rafters and is only a nominal 1 thick. A literature review was conducted and supplemented with new research on the performance of conventional roof systems and components including ceiling joist to rafter. Plated truss connectors these ties are light gauge metal plates that are used to connect prefabricated light frame wood trusses.

In double coursing the under course is attached to wood sheathing with three nails or staples. In panelized roof construction these connectors are used to anchor concrete or masonry walls to roof framing. Less than 20m in the case of pe destrian roofs with protection by slabs on adjustable supports. Follow your sipa member manufacturer s technical drawings specifications and installation instructions to ensure quality and avoid voiding any manufacturer warranties or guarantees.

Effective solutions provide strength stiffness stability and ductility. Standard dimensional lumber used for residential roof systems is most often nominal 2 x 6s 2 x 8s 2 x 10s depending on span and loading conditions. Rafters act more like the top chord of a roof truss than as a roof joist. For wider shingles and shakes three nails are used.

Refer to figure 3 1. Two nails are used for widths up to 8 inches. Connections are identical to those for wood truss connections. These drawings are provided by sipa for informational purposes only.

To determine the most appropriate connection for a given application it is necessary to understand certain fundamentals starting with the terminology.