What are the key considerations for achieving a 7-star NatHERS rating for new residential builds in subtropical Queensland?

Achieving a 7-star NatHERS rating for new builds in subtropical Queensland prioritises minimising heat gain. Key considerations include optimising orientation, utilising passive design principles like shading to all glazing, and ensuring appropriate wall and roof insulation. High-performance glazing with low U-values and solar heat gain coefficients is crucial. Effective cross-ventilation strategies, integrated with ceiling fans, reduce reliance on air conditioning. Selecting light-coloured roof materials and external finishes further mitigates solar absorption. Careful selection of building materials and detailing to minimise thermal bridging is also important to ensure energy efficiency and comfort.