What’s the main difference between roof construction options? BRANZ explains the science to help you design better roofs.
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Escaping heat follows the path of least resistance, flowing from warm areas to cold ones. Reducing the impact of potential thermal bridges in a building will help keep the warmth inside.
Don’t underestimate the importance of good design and orientation in determining how well a home invites in winter sun while dealing with peak summer heat. For established homes, there are also retrofitting options.
Considering wind uplift should be top of mind when replacing a heavy roof with a lighter one, NZS 3604:2011 Timber-framed buildings outlines the necessary top plate connections.
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.