Queen Post Roof

They look great and offer an open area in the middle of the truss.

Queen post roof.

Queen post trusses thequeenposttruss gradually replacedother trusstypes. In this roof queen posts are used instead of king post. A king post uses one central supporting post whereas the queen post truss uses two. Unlike a king post the queen post truss has two central vertical posts two rafters and a beam.

Queen post roof truss design hood roof bonnet roofing systems are basically a mansard roof backwards. Queen post truss consists of following components. The crown post rises to a crown plate immediately below and supporting collar beams it does not rise to the apex like a king post. 379 is a queen post truss for a 32 feet span.

A queen post is a tension member in a truss that can span longer openings than a king post truss. Even though it is a tension member rather than a compression member they are commonly still called a post. Queen post truss is define as a pitched roof support using two vertical tie posts connected between the tie beam and the rafters. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions.

Historically a crown post was called a king post in england but this usage is obsolete. Queen post roofs queen post trusses are used for spans over 30 feet and contain two perpendiculars to brace up the tie beam spanning the walls. The wooden queen post truss differs from a king post truss in having two wooden uprights or vertical members which are known as queen post. These vertical posts positioned along the base of the truss are supported by the sloping sides of the truss rather than reaching its apex.

Queen post roof trusses are very similar in design to king post trusses except that the interior of the truss has two vertical queen posts instead of one central king post. It is more lightweight than the king post and can be used to cover larger areas. An alternative truss construction uses two queen posts or queen posts.