Research defines the most energy efficient performer on roofs

News /
22 November 2012
Research defines the most energy efficient performer on roofs
Image courtesy of Plantation Homes.

Research conducted in Australia and abroad has deepened our understanding of household energy consumption and uncovered interesting results for the roofing industry and home buying public.

The roof is one of the largest external facing surfaces of a home and the choice of roofing material has been revealed as having a major role in determining internal living temperatures and therefore household energy usage.

Research conducted in the USA comparing (white) roof tiles and (white) metal roofing showed that roof tiles have significantly higher reflectivity than metal roofing, reflecting a total of 75.4% of solar energy. This is 7.8% more reflection than the metal roofing tested which reflected a total 67.6%.

In addition, as the solar energy moves though a given material, depending on the properties of that material it either dissipates or reduces in strength. Based on thorough testing, concrete and terracotta roof tiles were found to cause the strength of energy being transmitted to dissipate significantly.

Due to the high thermal mass of a roof tile, any heat that is absorbed dissipates as it transfers through the material, is stored and gradually released at night when the climate is cooler.

Commenting on the research Mr Michael Monro (Marketing and Sales Coordinator at Bristile Roofing) said “Roofing materials can make a valuable contribution to the overall thermal efficiency of the family home, keeping it cool in summer and warm in winter.”

“This research confirms the ability of roofing materials to minimise the need for artificial heating and cooling by reducing external temperature fluctuation. This impacts the internal temperature of the house which has important implications for the building industry and home buyers, as constructing an energy efficient home has never been so important.” he added.

Bristile Roofing

Bristile Roofing supplies stylish and innovative terracotta, concrete and clay roof tiles, along with roof fittings and fixings, sarking and ventilators.

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