Queen Post Roof Truss Design

Queen post roof truss design hood roof bonnet roofing systems are basically a mansard roof backwards.

Queen post roof truss design.

Queen post truss is suitable for 8 to 12 meters. Alpine truss designs are engineered to meet specific span configuration and load conditions. What is a queen post truss. Likewise referred to as kicked eaves a hood roof has 4 sides with a high top incline as well as a much more mild reduced incline offering cover around the sides of your home for a veranda.

Queen post truss is used when there is a need to cover large areas. A queen post is a tension member in a truss that can span longer openings than a king post truss. The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. If you need to add literal and or visual height to a space the modified king post may be what you like but as the bottom chord is raised higher the weaker the truss becomes something to keep in mind.

This free online truss and roof calculator generates the axial forces and reactions of completely customisable 2d truss structures. Unlike a king post the queen post truss has two central vertical posts two rafters and a beam. Queen post timber trusses can easily span 30 feet or more. Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20.

As we will see below there are several different types of designs and this will impact the angles and designs of the overall truss. This truss is made from a variety of materials such as timber or steel. This rafter truss calculator has a range of applications including being used as a wood truss calculator roof truss calculator roof rafter calculator scissor truss calculator or for roof framing. It is more lightweight than the king post and can be used to cover larger areas.

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. Even though it is a tension member rather than a compression member they are commonly still called a post. The king post truss is a wonderful choice for exterior dormers gables entryways and again the great room the king post can support spans of 40ft and beyond even in vermont. A king post has a central vertical post as used in architectural or bridge designs working in tension to support a beam below from a truss apex above.

They look great and offer an open area in the middle of the truss. Queen post roof truss queen post truss is define as a pitched roof support using two vertical tie posts connected between the tie beam and the rafters. The queen post truss is simpler and lighter in weight. It does not put weight on the centre of the main tie beam as the king post truss.