Creating Drier and Healthier Internal Environments

Mould is a common issue in New Zealand housing, with a BRANZ survey* reporting that mould was visible in 49% of houses surveyed. Due to the lightweight properties of water vapour, it tends to find its way into the ceiling cavity, which is why the ceiling is often the first place you will find mould, a known trigger of asthma. Unfortunately, the fostering of mould can be enhanced through poor design. Traditional roofing underlays are required to be vapour permeable, but can actually act as a significant barrier – leaving many Kiwis with the task of fighting household mould. HVAC units and dehumidifiers have historically been the common solution used in the struggle against mould.

With a strong and continued focus on product innovation, COLORSTEEL® offers a new design led solution that helps combat the growth of mould in New Zealand households - COLORSTEEL Dridex®.

COLORSTEEL Dridex® consists of a unique absorbent layer of fleece adhered to the reverse side of the COLORSTEEL® sheet. The anti-condensation fleece negates the need for traditional underlay and helps to keep the roof dry by absorbing water. When roof temperatures rise, the condensation evaporates, escaping out the roof cavity into the exterior environment.

The innovative features of COLORSTEEL Dridex® have seen it recognised as a Sensitive Choice product by the National Asthma Council, giving homeowners reassurance that they have the right product for a drier, healthier home.

By mitigating mould growth and assisting in the reduction of other pollutants often associated with asthma, the value of COLORSTEEL Dridex®, for most residential builds, can be quickly appreciated. At the same time, with quicker installation and an improved aesthetic, Dridex® also offers an advantage for commercial builds.