Nuraply 3PM
This trusted double-layer membrane provides exceptional waterproofing performance for exposed NZ flat roofs.
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Provides robust, dual-layer waterproofing ideal for New Zealand's varied weather.
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Resists UV exposure and mechanical damage thanks to a durable mineral finish.
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Easy to repair and maintain over the life of the membrane system.
Introduction
The best choice for robust, longterm waterproofing, Nuraply 3PM is New Zealand’s most specified torch on membrane, with a proven track record spanning decades. As a double-layer, torch-on system with a durable mineral chip finish, it’s been used on thousands of residential and commercial buildings across the country—from high-end houses, school redevelopments, apartment complexes and public infrastructure.
It excels in projects requiring long-term watertight flat roof performance. Nuraply 3PM is an ideal choice for warm roof systems, where it integrates seamlessly with insulation layers to form a fully bonded, energy-efficient build-up.
It must be installed by trained professionals, and is not suited where flame application is restricted. With extensive use in both new builds and refurbishments, Nuraply 3PM offers specifiers a reliable, CodeMark-certified solution backed by Nuralite’s expert technical support and documented performance history.
Considerations
Nuraply 3PM is not suitable for green roofs or planter boxes—use Nuraply 3PG with a drainage mat to prevent root damage and ensure proper water flow.
On decks, Nuraply 3PM must be protected from foot traffic using tiles or timber on Nurajacks; for roof access, a third sacrificial layer in a contrasting colour can be used to form maintenance walkways.
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.
Nuraply 3PM is approved for potable water collection—use Nuraglaze to keep the surface clean, and install filters and first-flush diverters as per Ministry of Health guidance; annual cleaning is recommended.
FAQs
How long does a torch‐on membrane like Nuraply 3PM last?
Is Nuraply 3PM suitable for warm roof construction in New Zealand?
What colour options are available for Nuraply 3PM?
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Related Webinars
Smarter Warm Roof Design with Drainage Slopes II
Discussing how incorporating drainage slopes can unlock more ambitious, functional, and compliant roof designs.
Presented by Shane Clarke (Nuralite), Hilton Boshard (Nuralite), Peter Mills (Nuralite) and Erin Hallett (Respond Architects).
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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).