Nuraply ALU
This aluminium-faced layer creates an effective vapour barrier to support condensation control in warm roof systems.
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Acts as a vapour control layer to prevent condensation buildup within warm roof systems.
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Reinforces long-term warm roof performance by controlling internal moisture.
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Self-adhesive so simplifies installation.
Introduction
Nuraply ALU is a specialised vapour barrier membrane, used at the base of warm roof systems to control moisture movement and prevent condensation. Featuring an aluminium foil face and a durable bituminous backing, it is designed to be installed directly on the structural deck beneath rigid insulation.
Nuraply ALU has been used extensively in warm roof builds across commercial, education, and high-spec residential projects. Its compatibility with Enertherm PIR and other rigid insulation boards ensures that it forms a secure part of the roof build-up.
Installation requires careful detailing at joints and penetrations to ensure a continuous barrier. While not a waterproofing membrane, Nuraply ALU offers short-term moisture resistance during construction—particularly useful for protecting CLT panels before the full system is installed. For specifiers designing airtight, efficient envelopes, Nuraply ALU is a trusted solution.
Considerations
Not suitable as a waterproofing membrane: Nuraply ALU is a vapour control layer, and must be used in conjunction with a complete roofing system.
Must be installed on dry, clean substrates: Contaminated or damp surfaces will compromise adhesion and may lead to blistering or membrane delamination.
Not effective without sealing all edges and penetrations: Poor sealing will result in vapour leakage and condensation risk.
FAQs
What is Nuraply ALU and how does it work as a vapour barrier?
Is Nuraply ALU compatible with warm roof insulation systems?
Where should Nuraply ALU be installed in the roof build-up?
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Related Webinars
Tapered PIR Roof Design
Discussing tapered Enertherm PIR boards and showcasing their benefits.
Presented by Shane Clarke (Nuralite), Peter Mills (Nuralite) and Shane Mulvey (Rhino Waterproofing Systems).
Substrate Roofing Solutions: Balancing Cost and Quality
Discussing the practical insights and benefits of various roofing substrates.
Presented by Shane Clarke & Benedicte Pacorel (Nuralite) & Micah Hoskin (Complete Waterproofing).