Tanking membranes

Explore our range of tanking membranes for below-ground waterproofing. Proven systems for basement, foundation and retaining wall applications – across all New Zealand ground conditions. Contact our technical advisory team to select the right systems for your project.

Coreflex

by Cetco

Coreflex is a high-performing, methane-rated tanking membrane. This Class A vapour barrier is proven on high-risk sites. With heat-welded seams, it resists the passage of water, vapour and contaminants.

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Volclay Swelltite

by Cetco

Swelltite combines active bentonite and a geomembrane for watertight performance. Punctures self-seal on water contact, making it ideal for challenging below-ground applications and retrofit conditions. No curing, priming or dry substrate required.

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Volclay Voltex

by Cetco

A robust, geotextile bentonite membrane that adapts to shrinkage, ground movement and contaminants. Forming a monolithic barrier, it bonds mechanically to concrete, seals around fasteners and self-heals cracks. Install in any weather.

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Tanking Details & Install Guide

Our Tanking Details & Install Guide was designed as a reference and onsite consultation tool. It includes our standard tanking details, drawings, technical information, and step-by-step installation guidance with supporting images. If you would like to request a copy, please email info@allco.co.nz

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