Complex detailing on a challenging roof is award winning

Arguably one of the finer examples of 20th century Architects Howell, Killick, Partridge and Amis, ST ANTONY’S COLLEGE has an impressive, coffered ceiling that reflects through and onto the external roof—a brilliant aesthetic effect, but one that present challenges for roof repair and replacement.

The roof’s pattern posed technical issues and meant that the solution needed to be capable of following the network of raised square platforms which each housed a single rooflight. IKO Permaphalt mastic asphalt was the material chosen to replace the existing failing system as it can be easily detailed around difficult details and protrusions, offering a robust monolithic system that is impervious to standing water.

The main challenge of the project was that all 88 rooflights had to be individually built up from scratch. The contractor had an apprentice who worked on this project throughout, gaining valuable experience of a large-scale, challenging mastic asphalt project.

The skilled craftsmanship utilised when installing this asphalt roof, to achieve complex detailing, particularly impressed the judging panel.