Protan Cool Roofs
Protan Cool Roof is a system that uses a white membrane with a documented high solar reflectance index (SRI) – and less need for cooling.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.
The product used in a Protan Cool Roof system is white Protan SE, which is fastened mechanically or secured using the vacuum roof concept.
Protan Cool Roof has been tested in accordance with ASTM C 1549-04 and ASTM C 1371-04a using methods approved by the Cool Roof Rating Council (CRRC).
Light coloured surfaces reflect sunlight better than dark ones and absorb less heat. The reflectance index of Protan's Cool Roof system with white membrane is 86 %.
