Roof Rafter Ties

Simpson strong tie 5 2 7 in 18 gauge triple zinc steel rafter tie.

Roof rafter ties.

The tie will go from one side of a roof rafter to an adjacent rafter but on the opposite side. Secure the opposite side in the same manner. In most homes the ceiling joists also serve as the rafter ties. Other facts about rafter ties.

Contrary to popular belief collar ties are not there to support rafters or to keep walls. For pricing and availability. 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. Rafter ties are always required unless the roof has a structural self supporting ridge or is built using engineered.

Compare this with a similarly framed 12 12 roof that has similar loads. For pricing and availability. This means that if you secure one end of the collar tie to the left side of a roof rafter you will nail it to the right side of the adjacent rafter. Measure for each new collar tie.

Step 4 continue installing collar ties. Contrary to popular belief collar ties are not there to support rafters or to keep walls below from spreading under the weight of the roof. The tie force at the plate is 480 pounds and only 720 pounds when the ties are 4 feet up from the plate again the maximum allowed by code. Simpson strong tie category roof truss and rafter connectors ties and straps for cold formed steel construction.

Rafter ties prevent spreading. Nail one end of the tie into the rafter with 3 inch nails. Where rafters are oriented perpendicular to the ceiling joists rafter ties should.