Blackheath Preparatory School Extension – Centaur

Blackheath Preparatory School Extension


Centech PU 25 BUR System

London Borough of Greenwich

Heartfelt Roofing Limited

A full 25 year Centech built up roof system has been installed on the new extension to Blackheath Preparatory School in South London. The innovative flat roof, which contains a series of monitor north lights, was specifically designed to allow as much natural light as possible into the building.

The roof is comprised of four distinct areas with six monitor rooflights arranged at intervals across the roof. The design called for the detailing around the glazed areas to have minimal visual impact making a liquid solution the ideal choice. The Client was also seeking an initial lifespan of at least 25 years and expressed a preference for a liquid system, having had very positive experiences with this type of system in the past. The main contractor, Space Change Management, had very specific budgetary constraints with the system selected having to balance performance against cost. The Client required a comprehensive 25 year guarantee for the project that covered both materials and labour.

The Solution
A full Centech PU 25 built up system was selected for the project comprising: Centech SA Carrier/VCL vapour control layer, Centech 120mm PIR Insulation bonded in Centech Single Pack Low Foam Insulation Adhesive, Centech SA Carrier/VCL carrier membrane and the Centech PU 25 waterproofing system.

The Benefits
The liquid applied Centech PU system was installed on the project quickly and efficiently by a member of the Centaur Quality Partnership, Heartfelt Roofing Limited of Coulsdon, Surrey.
The low odour system was installed during term time with contract times being kept to a minimum due to the ease of use of the vapour control layer, the carrier membrane and the Centech PU itself. The detailing around the glazing was easily and simply finished giving the designers the minimalist appearance they were seeking. The lifespan of the system can be simply and easily extended after 25 years by the application of a further top coat after appropriate preparation.
On completion, a Centaur 25 year single point Guarantee was provided for the project covering both materials and labour.