Protan Cool Roofs

High solar reflectance – less need for cooling

A white roof surface with high solar reflectance produces a much lower temperature in a compact roof structure than darker colours. A high solar reflectance index makes the roof more durable, reduces the need for the building to be cooled and counteracts the urban heat island effect, an important factor in a Southern European climate.

In a cool climate, it may be beneficial to lay white membrane in front of the fresh air intake of air conditioning units, for example, as the temperature will be several degrees colder than on the rest of the surface.

Light coloured surfaces reflect sunlight better than dark ones and absorb less heat. The reflectance index of Protan's Cool Roof system with the white membrane is 86 %.