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Efficient use of water

There are simple changes you can make to use less water and save money.

Dangerous, affected and insanitary buildings policies

Guidance for building officials developing policies for dangerous, affected and insanitary buildings

Types of insulation

Place insulation in your ceiling, under your floors, and in your walls to keep your home warm.

Activate your consumer rights

How to protect your consumer rights under the law when building or renovating.

Weather files for Aotearoa New Zealand

Download free Aotearoa New Zealand weather files to use in energy and hygrothermal building simulation software.

Heating your home

Choosing the heating system that works best for your home and family

Glazing and glass options

Invest in high-performing windows to reduce heat loss and keep your home warm, dry, and healthy.

Using thermal mass for heating and cooling

Heavy materials are good at absorbing heat - cooling your home during the day and warming it at night.

Insulation materials

Make sure the material you use to insulate your home works for you.

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: