New and Improved AH+ Liquid Waterproofing

SIG Design & Technology is continually innovating to offer the best products to its customers. With this in mind the company has launched the next generation of the popular liquid waterproofing system AH+ with improved levels of robustness and usability.

The new and improved version is a wet-on-wet, cold applied liquid water-proofing product that’s fully reinforced with a polyester fabric. An innovative one-component liquid system it offers many benefits including ease of application, fast curing times and with low VOC content it is fume free and virtually odourless.

It can also be applied in practically any conditions and at low temperatures.

The superior performance of the liquid waterproofing system makes it ideal for new build or refurbishment projects and gives superb results with complex detailing.


Available in two versions, AH25+ and AH15+ use different weight reinforcement fleece and coverage rates and are available with 25 and 15-year warranties respectively. AH+ systems are BBA certified, certified to EN13948: 2007 for Green Roofs and fire tested to meet BS476-3 2004

Accredited contractors

SIG Design & Technology offers a wide range of liquid waterproofing systems to suit your project with warranties available from 10 to 25 years. Successful liquid roofing applications rely heavily on the contractor choosing the right product and installing it in the approved manner. The SIG Design & Technology Accredited Contractor scheme (DATAC) provides assurance that the company’s roofing systems are correctly installed.

For more information on the new and improved AH+ liquid waterproofing systems click here or  telephone SIG Design & Technology on 01509 505714.



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