Roof Purlins Nz

Top notch purlins come in a full range of sizes from 60mm to 150mm depth easily tek screwed to the supports without the need for purlin bracing and cleats.

Roof purlins nz.

Purlins typically 75 x 50 mm and fixed across the rafters were spaced at 760 900 mm centres depending on the roof cladding. They are ready for use in many smaller spanning applications from 2m to 7m. For roofs the out of plane component of the dead load of the roofing and purlins is assumed to be carried in tension by fastbrace or bolted brace channels tied across the ridge or into the ridge beam for monoslope roofs. Ms tophats are cut to length and available in a range of sizes and gauges to suit a variety of applications.

Are 480 600 or 900 mm. Mss purlins and girts are available in a variety of sizes and gauges cut to length and prepunched to suit a variety of applications. It should be noted that timber purlins for metal roof cladding are minimum 70mm x 45mm h1 2 18 moisture content and that battens used previously for tiles must not be used. Tophat purlins are manufactured from hot dipped galvanised steel with a coating weight of 275gram sqm in line with other common lightweight steel structural building products.

This is a skillion roof so consider roof cladding how it will be fixed whether it is to purlins battens or sarking and the proposed ceiling lining requirements. Metalcraft roofing s structural division manufactures metalcraft super span shortened to mss purlins and girts for the new zealand construction market and the pre engineered garages and sheds market segment. For a fuller explanation of this refer to the nz metal roof and wall cladding code of practice. Hst steel purlins girts are high strength lipped profile sections manufactured by steel tube to provide an economic solution for your building project and to assist with design.

Sections are supplied punched and cut to length as required. This result should be referenced to the wind load span design graphs. The purlin spacings should be limited to the lower of the trafficable limitations and design wind load with the capacity of the structure. Overview dimond s range of top notch purlins are compact lightweight and easy to install.