The existing asphalt flat roof had been weathered and after 40 years was at the end of its service life. The roof had undergone numerous repairs at various time and the client’s surveyors had decided on a replacement rather than a further repair.
We have been involved with several projects on the building at BRE and have a sample of our Green Roof system on show. After consultation with the client, we recommended the use of Evalon Single Ply membrane for this roof. The membrane offered a 25 year guarantee together with the benefit of bonding 120mm PU insulation to the asphalt roof. The Evalon single ply membrane was then bonded to the insulation, extending the life of the roof by 25 years.