Attic Trusses And Rafter Ties

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Attic trusses and rafter ties.

Simpson strong tie 6 in 18 gauge triple zinc steel rafter tie. The prescriptive provisions of the building code require rafter ties on each rafter pair and collar ties every 4. Installation is the same for trusses as for rafters see above. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.

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. For pricing and availability. Collar ties are necessary to prevent separation of the roof at the ridge due to wind uplift. Measure the distance between adjacent roof rafters so that you will know the amount of lumber to purchase.

Simpson strong tie category roof truss and rafter connectors ties and straps for cold formed steel construction. Instead of attaching the tie to the rafter you will be attaching it to the bottom chord of the truss. Collar ties rafter ties tension beams structural ridge beams. Collar ties are usually placed in the attic area of homes.

They are secured about three quarters of the way up the roof rafters. Some of these can support the roof and prevent ridge sagging and wall spreading. Moving the rafter ties up only 16 inches from the plate the maximum allowed by code increases the tie force from 1 440 pounds to 2 160 pounds. Hurricane ties offer a strong connection that will provide you with the strongest resistance against uplift.

Simpson strong tie 5 2 7 in 18 gauge triple zinc steel rafter tie. An engineer can design a roof with rafter ties on wider spacings look at the ridge and or wall plate as a beam if doing that. For pricing and availability.