Weather Defence®
Weather Defence is a rigid air barrier used behind façade cladding systems. It is most commonly used in ventilated façade or rain screen.
Weather Defence provides the quickest way to achieve a weathertight building, allowing internal trades to keep working in inclement weather conditions.
Its excellent vapour permeability makes Weather Defence suitable for colder climates. It is classified as vapour permeable Class 4 and is recommended for use in Climate Zones 2 to 8. In Climate Zone 1, it is recommended to apply a vapour barrier over the external surface.
Being a plasterboard product, it is classified as non-combustible in terms of the NCC, making it suitable for use in external walls of high-rise buildings. Weather Defence is certified for use in various fire-rated systems where an FRL is required.
Weather Defence can help installers to achieve the airtightness targets required to contribute to a building’s energy efficiency and allow any glasswool insulation in the cavity to perform as intended by avoiding wind washing.
It also improves the acoustic and thermal performance of the façade.
