Trussed Rafter Roof Design

We offer technical advice on trussed rafters covering all areas from design and specification to delivery and installation.

Trussed rafter roof design.

Standard bracing of simple duopitched trussed rafter roofs for dwellings. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. It is specifically designed to meet the information needs of all the members of the project team from feasibility planning through the detail design stage to erection and completion on site. Build a fink truss to bolster a floor roof or deck.

Standard bracing of room in roof trussed rafter roofs download. The idea of trussed rafters arrived in this country from the states during the 1960 s and quickly became the standard method of constructing roof structures in domestic construction. Trussed rafters are defined as triangulated timber frameworks positioned at close centres generally 600mm to form roof structures. Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall.

They are a highly engineered product manufactured in factory controlled conditions to high production standards. Guidance on design of trussed rafters to cater for storage loads member. Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. As we will see below there are several different types of designs and this will impact the angles and designs of the overall truss.

In a fink truss the internal joists are arranged in a w shape ensuring even weight distribution from one end to the other. Apr 25 2019 explore robert heimbigner s board roof truss design followed by 984 people on pinterest. Trussed rafter roofs are individually designed components made from kiln dried strength graded timber joined together with durable steel nail plates. The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs.

Fink trusses were originally invented for the purpose of beefing up bridges but many contractors now use them to increase the strength of interior structures. The trussed rafter manual is a comprehensive reference guide to trussed rafter roof design specification and construction.