Facades / Cladding
Certified Stone Plus Announces AS/NZS 4284 Compliance for Coverlam by Certified Stone Plus Panels
Certified Stone Plus, as the exclusive New Zealand partner of Coverlam by Grespania, is pleased to announce our latest and exciting test results.
Working alongside StoneFacade and Tweha, Coverlam by Certified Stone Plus has achieved AS/NZS 4284-2008 compliance for our 5.6mm and 12.0mm technical stone panels.
Brent from StoneFacade NZ has been the driving force behind developing an approved compliance system for both New Zealand and Australia. His work has delivered a cladding solution that meets code for residential and commercial projects, tirelessly testing, improving, and simplifying the systems the industry has been waiting for.
Tweha provides the expertise that ensures everything stays perfectly bonded. As specialists in primerless bonded façade cladding and bonding systems, Tweha is renowned for their high-quality, durable solutions used in ventilated cladding applications.
The Grespania Group collaborated directly with Tweha, achieving outstanding bonding results after 4–6 weeks of rigorous testing on Coverlam material in January–February this year. With this preparation, Certified Stone Plus and Coverlam already had complete confidence heading into the recent testing at Shelby Wright Test Labs, overseen by Bernard Farrington, Senior Specialist and Laboratory Manager. The results exceeded expectations.
Together, Certified Stone Plus, StoneFacade NZ, Tweha, and Coverlam by Grespania are proud to offer the industry a system that not only meets the highest market standards but also delivers practical advantages. With our 5.6mm and 12.0mm panels tested and approved to AS/NZS 4284-2008 compliance, projects now benefit from a lighter, more cost-effective solution: easier to cut, lighter to install, reduced costs, and less weight on the structure.