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    “Breathable” thermo-reflective insulation for cladded walls from Air-Cell Insulation

    Kingspan Insulation

    When you’re building with cladded walls you’ll know that many cladding materials require installation with a breathable sarking product behind it so that vapours are allowed to permeate without damaging the cladding material.  In addition to that you’ll still need to install some sort of insulation product.

    Air-Cell Insulation , an Australian insulation innovator, has just made things a lot easier with its new Permishield, a 3-in-1 breathable insulation, thermal break, and vapour-permeable sarking.

    Designed specifically for wall applications, Permishield is ideal for insulation behind lightweight cladding materials that usually require installation with a breathable membrane.

    Manufactured with a patented closed-cell, cross-linked foam structure sandwiched by highly reflective foil surfaces and pierced with tiny, evenly-spaced breather holes, Permishield allows building professionals to do away with the traditional sarking-plus-batts combination, in order to achieve thermal compliance as well as satisfy vapour permeance required by many lightweight wall cladding materials.

    AIR-CELL Insulation Technical Services Manager, Keith Anderson, explains: “Conventional building methodology requires a perforated sarking product as well as bulk insulation to be installed into the walls.”

    “And if it’s a steel-framed wall then a thermal break product is also required. Permishield is a revolutionary product that can achieve all this in one go - saving significant time in the construction process.”

    Due to the conductive thermal bridging properties of metal and steel, the Building Code of Australia (BCA) requires that certain buildings with steel-framed walls are required to include a minimum thermal break of R0.2 between wall cladding and the steel frame to reduce thermal bridging and conductivity between building elements.

    As with all AIR-CELL Insulation products, Permishield is fibre-free, non-allergenic, environmentally friendly and fast and easy to install. Permishield has been stringently fire tested and complies with Australian Standards and BCA regulations.

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