The roof area of this government office building was complex due to expansion joints, air conditioning units and intricate detailing requirements. Work hours had to be agreed with the client to keep disruption to other ongoing work at the site to a minimum and insulation upgrades were necessary to satisfy building regulations. The office also had to remain open throughout the works, causing some logistical challenges. All deliveries were timed so not to cause any disruption to visitors coming in and out of the facility.

The specification

Bauder’s bituminous system, BTRS, was specified because it is durable, robust and can withstand permanently sited loads of up to 2000Kg/m². The system build-up included Bauder’s 100 mm Thermotech Glass insulation for superior thermal performance, ensuring the roof achieved the required 0.17 U-Value. Small linking roof areas were waterproofed using Bauder Thermofol PVC single ply system, which is long-lasting, possesses high tensile strength of over 1100N, and allows for no physical penetrations of the roof.

Products applied

Bauder Total Roof System:
Integrated bituminous waterproofing system with a life expectancy above 40 years.

Bauder Thermofol PVC:
1.5 mm single ply membrane can be guaranteed for up to 20 years depending on the system type.

Bauder Total Roof System (BTRS) and BauderThermofol PVC

Advocacy

Project specifier, Tony Collins, Office of Public Works:

“Bauder delivered a comprehensive roofing solution that utilised their top quality products and unrivalled technical support. Despite the design and logistical challenges encountered, the new roof system was delivered on time and to budget much to the delight of the client.”