Hip Roof Rafter Ties

A hipped roof can be designed without rafter ties or internal columns by using the wall plates as tension members and the roof deck for stability.

Hip roof rafter ties.

Seems the only way the hip and the hip side wall could fail would be if the ridge fails pushing down the hip rafters and pushing out the hip wall. 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. Featuring a versatile hinged seat the lssj is easily field adjustable to typical rafter slopes with a max slope of 12 12. This is what i was thinking.

The hip ridges are supported by the main ridge. Without roof deck the four hip members together with a four foot long ridge beam form an unstable structure when hinged at all six nodes. A rafter tie forms the bottom chord of a simple triangular roof truss. An example of retrofitting mid span rafter ties is at sagging roof repair where sagged rafters are jacked straight and mid span horizontal 2x lumber is nailed in place replacing older collar ties that were located near the ridge.

The simpson strong tie lssj field adjustable jack hanger is the ideal hanger for connecting jack rafters to hip valley members. As long as the main ridge has ties the hip ridge and rafters cannot go anywhere.