Roof Truss To Top Plate Connection

High wind zone exposure b wall connection at load bearing walls.

Roof truss to top plate connection.

These details are suitable for a maximum truncated girder station of 3600mm. More specifically section r802 10 5 states in part. As an alternate to the roof truss anchor a bolted top plate may be used for the roof to wall connection see figure 5. They work by creating a connection right at the 90 degrees joint of the truss and top plate.

Several connections are required to create a continuous load path starting with a hurricane tie or structural fastener connecting the roof framing to the top plates. Timberlok structural wood screw. Most building codes require hurricane tie brackets to attach the truss in place to secure it against high winds. Residential code irc requiring roof trusses to be attached to the top plate s of load bearing walls with connectors capable of resisting an uplift of at least 175 lbs.

Although not always required best practice and simplicity make them a necessity. The full threaded shank engages the entire length of the fastener providing a secure connection. Trusses to top plate. For additional information the simpson strong tie high wind resistant construction application guide f c hwrcag offers a variety of options to resist roof uplift forces.

Ledger to rim. Trusses shall be connected to wall plates by the use of approved connectors having a. Hip end connection for low wind area wind classification n1 n2 n3 or c1 connection of jack creeper and hip trusses at a hip end roof for design wind speed n1 n2 n3 or c1 shall be in accordance with the details shown. The strong drive sdwc truss screw provides a stud to bottom plate or stud to top plate connection as well as fastening trusses and rafters to top plates.

Metal plate truss connectors must be able to transfer wind forces on the truss top chord. The detail illustrates several different connector types that are commonly used. The connection between the trusses and the wall top plate is essential to the strength of your new roof. However anchor bolt spacing must be reduced 24 in.

These angle connectors from simpson strong tie create a solid connection between truss and top plate and are relatively easy to install. The values in table 1 can be used by a licensed design professional to determine suitability of this fastener in a truss or roof joist to top plates wall connection. Simple strong and effective. 610 mm maximum because the top plate is loaded in its weak direction.