Roof Rafter Straps

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Roof rafter straps.

A tension tie in the upper third of opposing gable rafters that is intended to resist rafter separation from the ridge because of wind or unbalanced roof loads. When ceiling joists run perpendicular to the rafters inspectors may find rafter ties installed above ceiling joists as framing members every 4 feet running above the ceiling joists connecting opposing rafters. Click to add item mitek 4 3 4 x 23 6 12 pitch uplift strap connector to the compare list compare click to add item mitek 4 3 4 x 23 6 12 pitch uplift strap connector to the compare list add to list click to add item mitek 4 3 4 x 23 6 12 pitch uplift strap connector to your list. Rafter ties should be at least 2 x 4 inches nominal.

Simpson strong tie hurricane ties are designed to resist high winds and seismic forces by positively connecting trusses rafters to the top of wall of the structure. Some hurricane tie models are available with additional corrosion resistance for. Trussed rafter roof bracing systems are designed to provide adequate stability to the entire roof structure and it is recognised that providing the straps are located at suitable positions and centres to accommodate the requirements for wall restraint the longitudinal bracing members generally comprising 25mm x100mm sawn timber together with their fixings to the trussed rafters should be adequate to transfer the forces from the restraint straps to the roof construction. Simpson strong tie category roof truss and rafter connectors ties and straps for cold formed steel construction.

These ties connect both solid sawn and engineered lumber across a wide range of applications. If you are framing a cathedral ceiling there are a couple ways to deal with the need for rafter ties. You can possibly remove them altogether of you include posts in the gable walls to support a structural ridge. A rafter tie forms the bottom chord of a simple triangular roof truss.

Make sure that your truss and rafter are also toe nailed in place before you install your hurricane straps. Collar tie is a colloquial term for collar beam. Rafter ties or ceiling joists acting as rafter ties are required by code unless the house is designed so that the walls or a structural ridge beam carries the full load of the roof. Nail each hurricane strap to your truss or rafter with 16 penny framing nails when you install hurricane straps to a roof.