Roof Truss Design Nz

Roof form the house roofs of the 1940s 60s typically had a simple roof form with either a hip figure 1 or a gable and a relatively steep pitch typically between 30 and 40.

Roof truss design nz.

Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 1 15 30 snow shingle 40 1 15 20. Pitch the higher the pitch the taller higher the truss is and the stronger it is. The truss must be specifically designed in accordance with b1 vm1 and manufactured by an accredited fabricator a maximum truss span of 12 m a maximum truss spacing of 900 mm for a heavy roof and 1200 mm for a light roof the load on the ends of the trusses to be no more than 16 kn in both directions up and down. The fabricator generally designs the trusses using mitek 20 20 and sapphire proprietary truss design software supplied by mitek new zealand ltd.

Feature roof trusses adding two or more feature roof trusses thereby creating extra height to the ceiling is a fantastic and cost effective way to add value and character to your build. Apr 25 2019 explore robert heimbigner s board roof truss design followed by 984 people on pinterest. The new zealand wooden roof truss installation companies in our database build to customer specifications and are compliant with all government regulations. Our manufacturing process makes the most efficient use of timber and ensures minimal timber wastage.

Every truss is made to meet unique design specifications engineered to support the specific loads placed upon them. There are many different styles of feature truss with each design having specific characteristics which work well in particular situations. Alpine truss designs are engineered to meet specific span configuration and load conditions. All of our designs are certified by our specialist design software developed specifically for roof truss timber framing design.

Span the bigger the span the higher the pitch needs to be. The mitek design office is on hand to assist architects builders and fabricators with engineering. The companies in our network can handle residential projects schools churches hotels and commercial establishments. Providing roof trusses to new zealand residents since 2010.

A large number of home designs benefit from roof truss designs saving their owners money compared to other timber alternatives. See more ideas about roof trusses roof truss design roof. Lean to roofs dormers and other roof features were not incorporated on the roofs of state or privately built houses although some state houses had dutch gable roofs.