Nz Roofing Standards

As nzs 4256 3 1994 standards nz website.

Nz roofing standards.

When your school is getting a new building or replacing a roof as a board of trustees you need to consider a range of factors that will help you choose the most suitable type of roofing material. Self supporting underlays are used in both domestic and commercial buildings. We specialise in managing the development of standards. National education growth plan.

In addition clause 10 2 2 3 requires amongst other things that. Standards new zealand is a business unit within the ministry of business innovation and employment. About nz s network of schools. New zealand s network of schools.

Corrosion resistance durability of the metallic base. The roofing association of new zealand ranz represents over 300 nz roofing member businesses nationwide. The contents of this code of practice are relevant to other countries. The new zealand roof and wall cladding code of practice has been written for new zealand conditions that recognize it as an unique island 2 000 km away from another major land mass which is subject to high rainfall high humidity extremes of weather and high winds.

Durability of any paint coating either pre or post forming. The load on the ends of the trusses to be no more than 16 kn in both directions up and down. A number of new zealand and joint australian new zealand standards cover roof construction roofing materials and components. We also publish and sell new zealand joint australia new zealand and international standards.

Support of self supporting roof underlay may be required where the roofing material is dark coloured or when exposed from underneath. A maximum snow load of 2 kpa. Ranz members have passed strict criteria to gain membership status. A maximum truss spacing of 900 mm for a heavy roof and 1200 mm for a light roof.

The new zealand building code sets the minimum performance parameters for the design and construction of roofs. A maximum truss span of 12 m.