Hip Roof Load Bearing

However a house with a hip roof structure suggests that all the exterior walls are bearing walls.

Hip roof load bearing.

Anything 5 and above we always at least double cripple. As the foundation block walls yellow on layout run perpendicular to the demo wall red arrow indication on layout we figured it s probably a non load bearing wall. The exception would be in the case of a hip roof were ceiling joists often change direction at each end of the house and a wall is run crossways to support the inside ends of the joist the ceiling joists appear to change direction directly above one of the walls. There are many houses where just the front and back walls are bearing walls.

We want to open the small kitchen into the old unused dining room in our single story hip roof house. In hip roof designs all four exterior walls support the ends of roof rafters so all exterior walls bear a weight load from the roof above them. Because i have a hip roof that slopes towards each exterior wall each of those walls is carrying some roof weight. Interior load bearing walls may also support the roof as they do in gable roof designs.

Any wall on all floors directly above or parallel to a basement beam typically wood steel i beam or a basement wall must be considered by a layman as directly load bearing. A bearing wall will run in the same direction as the ridge of your roof. Side walls are primary load bearing walls in simple gable end framing but hip roofs and complex roof lines depend on more than just the side. Bearing according to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2.

The exterior walls on houses that support the roof are primary bearing walls. These walls directly support roof trusses or rafters. My home is different. Stair well openings are also typically load bearing points.

The forces on the hip rafter jack rafter connection consist of the tributary roof load transfered by the jack rafter plus a force along the axis of the jack rafter which also changes the perspective of the stresses at the bottom of the jacks from straight down to sliding off the plate.