Warm Roofs

We are specialists in waterproofing warm roofs and have worked on some of New Zealand’s largest and most significant projects.

New Zealand’s warm roof waterproofing specialists

Sansom delivers reliable warm roof systems using advanced waterproofing techniques and comprehensive quality assurance processes. As licensed applicators with nearly five decades of waterproofing expertise, we understand the critical vulnerabilities of warm roofs and implement rigorous quality assurance to ensure long-term performance.

We use electronic testing and infrared scanning to detect potential membrane damage or moisture accumulation. With expertise in Electric Field Vector Mapping (EFVM) and leak detection technologies, we work to ensure warm roofs maintain their designed thermal performance and structural integrity.

Our remedial solutions address moisture-related issues in existing warm roof systems through tailored approaches rather than costly complete replacements. Each project requires unique solutions, from strategic venting systems to controlled drying processes.

How Do We Prevent Moisture in a Warm Roof?

While historically New Zealand has been slightly behind the times in terms of construction innovation, the rise in demand for warm roofs has been a welcome change.
These systems, designed and warranted for 20-year lifespans, represent a significant investment in our building infrastructure. However, their relatively recent adoption means we’re now entering uncharted territory with the first generation of these installations.
Recently, we’ve been noticing a concerning pattern.
Some warm roof issues and problems are beginning to surface, with many of these remaining hidden from public view.
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Let’s have a chat about your next tunnel project.