In a 2002 paper entitled ‘Weather-tightness: A Review of Exterior Wall Assemblies’, Marketing Engineer Guy Cavanagh of Carter Holt Harvey called for the wider use of waterproof and vapour open (breathable) wall underlays – the exact technology that is now available in pro clima’s SOLITEX range of products.

Designed to withstand three months' exposure to New Zealand’s UV levels and being uniquely non-porous, the SOLITEX weathertightness membranes offer benefits to construction techniques such as: immediate protection of the structure from additional moisture loading; treating wall and roof construction the same by using ventilated cavity construction -creating drainage and drying planes; and eliminating the requirement for a 25mm air gap between roof underlay and insulation, thereby allowing fibrous insulation to perform to optimum levels.

The CodeMark-certified wall underlay SOLITEX EXTASANA meets and exceeds the recent amendments to E2/AS1: Table 23 requirements, giving specifiers confidence in a product that performs as required and expected. It also gives assurance to the builder who signs off installation with their LBP number that the product meets minimum standards in the NZBC.

pro clima’s products have been used nationwide since 2006 including in Housing New Zealand’s new builds in Glen Innes, Auckland, and have been specified on every current and completed Passive House standard building in New Zealand. SOLITEX EXTASANA was also used on NZ’s first Living Building Challenge project, Te Uru Taumatua.

pro clima is proud to bring to market products that can change the performance of the building's structure in terms of energy consumption and durability far beyond current expectations. Using its expertise in applied science, it helps to create durable, high performing buildings that ensure the health of the occupants.