Weekend Herald

Go hi- tech for a high- performing home

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Roll over 4x2 timber and corrugated iron. Hightech building materials are taking over. Cutting edge building materials are often cleaner, greener, stronger or just cheaper.

And many of these materials are responsibl­y sourced, says New Zealand Green Building Council’s chief executive Alex Cutler.

Leaps in technology are happening with virtually every material going into new homes ( and renovation­s).

Many new building materials are also sustainabl­e and efficient and help create a highperfor­ming home,” says Cutler.

“For example, measuremen­t systems allow you to get into the nitty- gritty of analytics and really fine- tune your home for optimal performanc­e; highly efficient heating systems and batteries to store solar power will dramatical­ly reduce power bills.

“Building technology is constantly evolving, and our hope is that more and more people will start demanding warmer, drier, healthier homes from those who create them.”

Even concrete slab edge insulation has gone high- tech. Just like you have an insulated mat under you when you go camping, products such as HotEdge slab edge insulation do the same job for a house.

The edge is important because that’s where up to 80 per cent of the heat escapes, according to BRANZ.

There are a range of products designed to help new homes be toasty from underneath including NUDURA insulated concrete forms, EZpanel autoclaved aerated concrete and Koolfoam, an expanded polystyren­e.

One of the poster children for high- tech building materials is Photochrom­ic glass. SageGlass electrochr­omic glass windows can tint to block out light at the hit of a button, and contribute to net zero buildings by moderating interior air temperatur­es.

The Home Ideas Centre in Parnell showcases a number of high- tech building materials such as Viking EcoStar roof tiles.

While these tiles look like slate, they are made of up to 80 per cent post- industrial recycled rubber and plastics and are about half the weight of traditiona­l slate.

They are manufactur­ed from recycled polymers and they don’t crack under the stress of New Zealand weather, says Viking marketing and communicat­ions co- ordinator Hannah Smith- Frank.

The same company sells roof gardens, which extend the roof ’s life. Other benefits of these roof gardens are aesthetics, storm water management and helping to purify the air by reducing greenhouse gasses, says Smith- Frank.

— Diana Clement

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