Roof Truss To Top Plate Connection

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Roof truss to top plate connection.

Trusses to 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. More specifically section r802 10 5 states in part. For attaching rafter or trusses to the top plate landscape timbers fences decks headers stair stringers and more.

Most building codes require hurricane tie brackets to attach the truss in place to secure it against high winds. 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. Metal plate truss connectors must be able to transfer wind forces on the truss top chord. Although not always required best practice and simplicity make them a necessity.

High wind zone exposure b wall connection at load bearing walls. As an alternate to the roof truss anchor a bolted top plate may be used for the roof to wall connection see figure 5. The connection between the trusses and the wall top plate is essential to the strength of your new roof. 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.

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. The full threaded shank engages the entire length of the fastener providing a secure connection. 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. Ledgerlok structural wood screw.

Timberlok structural wood screw. 610 mm maximum because the top plate is loaded in its weak direction. Trusses shall be connected to wall plates by the use of approved connectors having a. 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.

These details are suitable for a maximum truncated girder station of 3600mm. Simple strong and effective. Ledger to rim. These angle connectors from simpson strong tie create a solid connection between truss and top plate and are relatively easy to install.