Timber Roof Truss Connection Details

There is a hierarchy of timber framing at work here with trusses supporting the ridge and purlin beams.

Timber roof truss connection details.

For many multi family projects floor and roof trusses joists span from unit wall to unit wall while interior non load bearing walls tend to fall near the center of the floor span. Also referred to as a ribbon or band board rise vertical distance from bottom most part of the bottom chord to inside of the peak. Rafters 3 7 1 rafters on floor deck 3 7 2 rafters on dwarf wall 3 8. It is often used in simple roof trusses such as in the shed porch and garage.

As a result these non bearing walls could end up attracting a majority of the floor load if built tight to the underside of the floor framing system. Truss at right angles to each other at separating wall 3 6. Truss parallel to separating wall 3 5 3. Connections page 1 of 17 30 01 2006 connections in timber structures 6 1 introduction the competitiveness of a timber structure relative to other building materials may be determined by the efficiency of the connections.

Most importantly the stabilizer saves time and money. The stabilizer accurately spaces roof truss es on 24 and 16 centers with an accuracy of 1 32. A literature review was conducted and supplemented with new research on the performance of conventional roof systems and components including ceiling joist to rafter connections and roof framing to wall connections. A timber frame truss roof with ridge beam purlins and common rafters is a stunning combination that creates visual interest and structural complexity.

Timber roof trusses are engineered and manufactured to an exacting standard which require special handling erection and bracing techniques. To ensure that the. The stabilizer installs as fast as the crane can set trusses and clips on to ride up with the truss to the plate line. In wood construction several unique detailing considerations exist.

Section 5 truss connections 5 1 hip ends 5 2 girder 5 3 gable end trusses 5 4 valleys 5 5 overhangs. Above these components is a rack of common rafters. Truss perpendicular to separating wall 3 5 4. In a nutshell it s made up of a central vertical post called the king post two rafters meeting at the apex and a tie beam or the horizontal base.

Section 1 scope and general. The king post roof truss is the simplest of the trusses because of its simple composition. Shop drawingdetailed drawings of a roof truss or roof framing showing critical. The focus of this project was on connections used with conventional light frame wood roof construction.

Expected deflections of 1 2 to 1 are common for these spans. Download free high quality cad drawings blocks and details of wood truss schedule organized by masterformat. Roof panels 3 8 1 roof panel connections 3 9. It provides lateral restraints and remains as a permanent lateral restraint.