Hip Roof Load Bearing

Anything 5 and above we always at least double cripple.

Hip roof load bearing.

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. 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. 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. Bearing according to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 2.

Some claim true rectangular or square hip roof structures are self supporting. 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. I recently acquired a calculation where such a point load was deemed to be 12 000 lbs on a 28 wide garage having a 10 12 pitch roof. Stair well openings are also typically load bearing points.

Interior load bearing walls may also support the roof as they do in gable roof designs. A bearing wall will run in the same direction as the ridge of your roof. The exterior walls on houses that support the roof are primary bearing walls. However a house with a hip roof structure suggests that all the exterior walls are bearing walls.

We want to open the small kitchen into the old unused dining room in our single story hip roof house. Because i have a hip roof that slopes towards each exterior wall each of those walls is carrying some roof weight. 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. Not all exterior walls are bearing walls though.

These walls directly support roof trusses or rafters.