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Ametalin > Updates > Study Challenges Efficiency Rating Assumptions
Study Challenges Efficiency Rating Assumptions
31 Jul 2023 by Ametalin
In Australia, the energy efficiency of new homes is required by the National Construction Code to be estimated through the Nationwide House Energy Rating Scheme (NatHERS) and meet certain minimum standards. However, research from the University of South Australia indicates that even housing that performs well on paper isn’t necessarily resistant to the stresses of heatwaves.
The authors argue that NatHERS needs to account for the capacity of homes to resist heatwaves by reducing peak cooling demand, not just average annual consumption for heating and cooling. According to their research, a new, efficient 6-star rated home will consume more energy for cooling than a traditional double brick house under the same heat wave conditions.
Among a list of measures suggested for the improvement of energy efficient home performance are the installation of reflective foil under roofing material, and greater use of the adaptive comfort model for assessing the home’s capacity to deliver a comfortable indoor environment.
Ametalin manufactures a range of suitable reflective sarking membranes for installation under tile and metal roofs. Ametalin SilverSark xR double-sided foil-faced sarking provides an upwards reflective surface as a thermal barrier to solar heat gain. Ametalin ThermalBreak 7 double-sided-foil-faced 7 mm foam membrane meets the requirement for minimum R0.2 thermal break in steel frame construction. Both products deliver the additional benefit of effective moisture control in roofs when installed with the recommended drape and overlap. Ametalin recommends that the contribution of reflective insulation installed facing an air cavity should be assessed by a qualified engineer.
For further information, the study can be found at Science Direct.
Ametalin
Australia
Ametalin is a leading-edge brand manufactured by the Ametalin group, specialising in innovative reflective insulation solutions tailored for diverse climates globally, especially in Australia. Our goal is to create top-tier, competitively priced insulation systems and building wraps while upholding the highest standards of integrity. History: Established in 1999, the Ametalin group acquired the Silver Batts product range from Lafarge Plasterboard Pty Ltd. Over the years, expansions and acquisitions, including a laminating plant in Sydney and SA Toyo Pty Ltd in Adelaide, enhanced our capabilities and technology.
Location: With headquarters in Singapore, key operations, including marketing, sales, accounting, and product development, are based in Adelaide, Australia. Primary manufacturing, accounting, and logistics are in Johor, Malaysia.
Design Philosophy: Aligned with the Australian Institute of Tropical Architecture, we focus on achieving thermal comfort through radiant heat control and natural ventilation, aiming to reduce the reliance on air conditioning in coastal areas globally.
Products: Our insulation systems meet high standards, ensuring safety, superior performance, ease of installation, cost-effectiveness, and environmental friendliness. We distribute our products through major Australian building suppliers and extensively in Japan.
Award-Winning Design: Our Multi-layer Silver Batts received the prestigious Australian Design Award. We've also been recognised with the "Excellence in Aluminium" award and as a finalist for the "Prince Philip Prize."
Environmental Commitment: Committed to environmental protection, we strive to develop and maintain systems and practices that enhance and protect urban spaces for community enjoyment.
In essence, Ametalin is at the forefront of developing cutting-edge insulation solutions with a commitment to excellence, sustainability, and environmental responsibility.
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