Roof Tiles Solar Absorptance

Light coloured roof tiles keep cooler than darker coloured roof tiles and this cooler temperature can mean reduced energy costs for cooling a home or building.

Roof tiles solar absorptance.

Conduction heated air rises and causes wind currents that spread the heat around i e. Like any hot object it gives off heat to things coming into contact with it i e. Roofs with lower solar absorptance can help to meet basix thermal comfort requirements for cooling. Solar absorptance of roof tiles.

The solar reflectance index sri is a measure of the constructed surface s ability to reflect solar heat as shown by a small temperature rise. And a dark roof is more than 0 7. A hot roof also raises the temperature of the air above it. In nsw basix has three categories for roofing colour based on solar absorptance.

Colour solar absorptance value. Disadvantages of solar roof tiles. Convection a city full of hot roofs becomes a large concentration of hot air with studies showing it remains hotter both day and night than rural areas nearby. The basis of their solar absorptance.

Basix levels light 0 475 medium 0 475 0 70 dark 0 70 1 0 basix colour classification the building sustainability index basix aims to. The basis of their solar absorptance. A medium roof is between 0 475 and 0 7. Solar absorptance and the national construction code ncc prior to the release of ncc 2019 both volume one and volume two utilised roof solar absorptance as an energy.

As mentioned previously solar tiles generally cost more than twice as much as solar panels so you re really paying for the aesthetics. Light coloured roof tiles keep cooler than darker coloured roof tiles and this cooler temperature can mean reduced energy costs for cooling a home or building. A light roof is one with a solar absorptance under 0 475. Solar roof tiles are more than three times stronger than standard roofing tiles and are engineered for all weather protection.

With a 25 year warranty solar roof lasts longer than an average roof and protects your home for decades to come. Astral 92 7 aztec 72 8 boab 85 5 bungalow 92 2 flint 86 6 driftwood 78 0 hibiscus 65 7 lily 79 9 biscotti 74 8 chai 85 8 monsoon 90 7 moscato 88 2 jet stone 90 9 tabasco 78 5 rock salt 70 0 oceanic artists ink 94 6 carob 89 6 coffee bean 83 1 morocco 75 1 pearl 70 6 stellar 87 7.