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Nuraply TPO

Ideal for modern flat roof designs, this single ply membrane is easy to weld and designed to last.

1

Offers a clean, smooth finish that suits specific architectural aesthetics.

2

Seam-welded construction creates a watertight seal for lasting performance.

3

Smooth finish is ideal for collecting potable water.

Nuraply TPO installed
Nuraply TPO Nuratherm Warm Roof

Introduction

Nuraply TPO is a modern single-ply membrane designed for high-performance flat roof construction. With years of proven use in modern homes, commercial buildings and education projects across New Zealand, its hot-air welded seams create a sleek, watertight surface ideal for large, exposed roof areas. 


Architects and designers favour it for its clean appearance and efficient installation process. Nuraply TPO integrates easily with warm roof assemblies, offering thermal continuity without the use of open flame. It’s a preferred solution for projects seeking clean application and long-term performance. A fleeceback version is used as part of the Nuratherm Warm roof system to provide vapour pathways combined with a great appearance.


Nuraply TPO delivers a high-spec finish trusted by professionals nationwide, reassured by the CodeMark-certified solution backed by Nuralite’s expert technical support and documented performance history.

Considerations

  • Weather-sensitive installation: Nuraply TPO must be installed in dry conditions. Moisture during installation can  compromise long-term performance.


  • Requires protection on trafficked areas: TPO is not suitable for direct foot traffic or heavy loads. Pedestrian areas must include a protective overlay like tiles or pavers.


  • Dark colours are more vulnerable: Dark-coloured TPO membranes absorb more heat, which can accelerate degradation and reduce membrane lifespan — light colours are preferred.


  • Substrates must be correctly prepared: minimum 17 mm plywood for roofs (21 mm for decks), supported at 600 mm centres, laid in a brick pattern with tight joints, and fixed using stainless steel fasteners and glue.


  • Roofs must be built with proper falls: a minimum of 1:80 is required, but 1:40 is recommended for plywood and 1:60 for concrete or metal substrates to avoid ponding and meet CodeMark-certified standards.

Drone view of Nuraply TPO roof

Technical Documents

For all the Technical Documents you require.

Drone view of Nuraply TPO roof

Product Brochure

More information for download

Installation Details

A comprehensive set of Installation Details is available

FAQs

Can Nuraply TPO be used on green roofs?
Nuraply TPO could serve as the waterproof layer beneath green roofs but Nuralite does not recommend it. Since Green roofs are hard to remediate it is considered better to install the more robust Nuraply 3PG double layer system.
Why only offer light coloured TPO membrane in NZ?
A light-coloured TPO membrane helps reduce the system temperature. Our experience shows that dark membranes stress the TPO glues and cause the memrbane itself to degrade prematurely. We want to be 100% confident in the intergrity of our system so have made the decision to steer clear of dark TPO.
How is TPO different from other single-ply membranes?
Nuraply TPO stands out due to its heat-welded seam technology and free-of-plasticisers formulation. Unlike other membranes (such as PVC or KEE), it does not contain chlorine which is on the RED List. Importantly, Nuraply TPO is 1.5mm thick which is essential for longetivity. Others in NZ offer 1.1mm membranes which leave little product protecting the scrim layer.

Related Projects

Palmerston North Hospital | Nuraply TPO

Palmerston North Hospital

Palmerston North

O'Connell's Pavilion | Nuraply 3PM | Nuraply TPO

O'Connell's Pavilion

Otago

Hastings Municipal Building | Nuraply TPO

Hastings Municipal Building

Bay of Plenty

Robert Street | Nuraply TPO

Robert Street

Northland

Plus Pacific Tower | Nuraply TPO

Plus Pacific Tower

Auckland

Learn About

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Energy Efficient Warm Roofs

Discover how warm roof systems improve insulation, promote energy efficiency, and meet NZ building code requirements.

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Waterproofing Membranes for Flat Roofs – NZ

Waterproof Membrane Options

Explore waterproof membrane types for flat roofs in NZ. Compare TPO (single ply), bitumen, and liquid systems for durability.

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Related Webinars

Explore the architectural advantages of integrating tapered falls within warm roof systems.

Tapered Roof Design

Discussing the process, costs and real-life case studies of Nuralite's Tapered Warm Roof Solutions.

Presented by Shane Clarke (Nuralite), Scott Squire (Nuralite) and Peter Mills (Nuralite).

Contemporary coastal home with flat roofs, light wooden cladding, and a waterfront view. Features include a modern design, large windows, and a well-maintained landscape.

The Great Debate: Single Ply vs. Double Torch-On

Discussing advantages of single-ply and double torch-on membranes.

Presented by Shane Clarke (Nuralite), Rod Southwood (Nuralite) and Hilton Boshard (Nuralite).

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