Dark colours on areas such as roofing are suntraps soaking in the sun's rays placing significant relentless stress on the coating and the substrate. All dark colours absorb a lot of light. This in isolation is not an issue, however in combination with the light absorption dark colours also absorb heat from the infra red rays of the sun causing significant temperature build up on the surface. White and light coloured paints reflect both light and heat and therefore are not affected.
The unique formulation and materials of the Resene CoolColour range allows them to absorb light so they look the same but simultaneously reflect a large proportion of the heat falling on them keeping the surfaces significantly cooler than their standard counterparts. In essence, the colours work by reflecting energy in the near and far infra red region of the spectrum even though they absorb strongly in the visible region. The end result being that a Resene CoolColour will look the same as a standard colour but surface heat will build up slower and to a lower level than a 'not so cool' traditional colour.
In hot summer conditions a Resene CoolColour will help keep the coating, substrate and surface cooler, reducing heat buildup and stress.
Resene CoolColour technology performs optimally on dark colours that are the most prone to heat build-up, which makes it ideally suited for dark roofing and wall colours. It is available in a wide range of Resene exterior products and colours, including Resene Hi-Glo gloss waterborne, Resene Sonyx 101 semi-gloss waterborne, Resene Lumbersider low sheen waterborne, Resene Summit Roof satin waterborne roof finish, Resene AquaShield mineral flat, Resene X-200 waterproofing membrane, Resene Waterborne Sidewalk paving paint, Resene Waterborne Woodsman penetrating oil stain and Resene SpaceCote Flat waterborne enamel.