Fire ratings

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Fire terms and testing

By Ed Soja 1 October 2015, Build 150

Have you ever heard some fire terms and wondered what they mean? This guide will help you understand some of the correct terminology and relevant fire test methods.

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Boundary wall fire resistance rating

By John Grant 1 October 2020, Build 180

Controlling fire spread between residential buildings and outbuildings is important for protecting life and property. We recap the requirements and look at an area of confusion – fire rating of windows and doors in walls close to a boundary.

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C/VM2 update

By Dr Colleen Wade 1 October 2014, Build 144, Feature article

Some new fire ratings, the introduction of optional deemed-to-comply surface finishes and design clarifications are among recent changes to the Verification Method for fire safety design.

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Fire spread from lower roofs

By Kevin Frank 1 April 2018, Build 165, Feature article

It’s important with higher-density housing in urban areas to ensure fire doesn’t spread from a lower roof to an adjacent, taller wall. BRANZ fire researchers are delving into the validity of the current 9 to 5 rule.

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Fire resistance of tall buildings

By Dr Colleen Wade, Greg Baker 1 August 2022, Build 191, Feature article

There are many benefits from a focus on quality in construction. At the practical level, there are fewer call-backs and more satisfied clients. Beyond that, higher-quality buildings deliver healthier environments for living and working. At the top level, they can be inspirational.

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