Waimarie

Sustainable Design

Sustainability was a key driver throughout the project. In line with Lincoln University’s environmental goals, Waimarie incorporates roof and wall-mounted solar arrays.

The design team collaborated closely with the main contractor, suppliers and subcontractors throughout the detailed design phase, ensuring performance requirements and sustainability objectives were successfully integrated into the finished building.

EQUUS SOPREMA DUOTHERM Warm Roof System

To support the building’s sustainability and performance goals, more than 2,000m² of DUOTHERM roofing was installed throughout the project.

The specification demonstrates the versatility of the DUOTHERM system, which was successfully installed over multiple substrate types including: steel tray, insulated panel, concrete, and plywood.

The ability to accommodate different construction methods across the building enabled a consistent waterproofing and thermal performance strategy while meeting the complex requirements of a contemporary facility.

A DUOTHERM Warm Roof combines a high-performance vapour control layer, thermal insulation and a durable two-layer DUO waterproofing membrane system. Together, these components provide long-term protection against water ingress while delivering effective condensation control and improved thermal efficiency.

For a facility containing teaching, laboratory and research environments, maintaining stable internal conditions was a key consideration. By locating insulation above the structural deck, the DUOTHERM system helps maintain a more consistent internal temperature while reducing the risk of interstitial condensation within the roof structure.

Project-Specific Design and Performance Analysis

Every DUOTHERM Warm Roof is engineered to suit the specific requirements of the building it protects.

For Waimarie, the Equus and Soprema technical teams worked closely with the project consultants to provide:

• Project-specific roofing details
• Condensation Risk Analysis (CRA) for each roof area
• Wind uplift calculations

These assessments determined the most appropriate vapour barrier, insulation thicknesses and membrane specifications for each section of roof.

Using project-specific performance calculations ensured the required thermal performance and condensation control objectives were achieved without unnecessary over-specification, helping to optimise both performance and project costs.

Supporting Renewable Energy

An important aspect of the project was the integration of extensive solar energy infrastructure.

The Equus team worked closely with the design team on the detailing of solar panel fixing systems, ensuring the roof membrane remained fully watertight while accommodating the structural and performance requirements of the solar arrays.

Through careful design, technical detailing and the expertise of the certified applicator, the roof system successfully delivered both long-term waterproofing integrity and support for the building’s renewable energy objectives.