What is Sarnafil® AT
Sarnafil Advanced Technology was the first single-ply membrane in the UK to achieve Cradle to Cradle Silver certification. Introduced to the UK market in 2022, Sarnafil Advanced Technology combines the flexibility of PVC with the material characteristics of TPO membranes. The formulation does not include heavy metals, oils, chlorine, or plasticisers. All claims regarding product composition and certification are supported by independent assessment.
Sika® Sarnafil® membranes have been successfully used in roofing applications for over 60 years. Sarnafil® AT is our latest single-ply membrane development to carry the Sarnafil name and has successfully achieved Cradle to Cradle Silver certification in the UK.
The membrane is a hybrid of two material technologies that combines the flexibility and weldability of PVC single-ply with the material characteristics of TPO membranes, providing a waterproofing solution that does not contain heavy metals, oils, chlorine, or plasticisers.
The FIRST UK roofing membrane to achieve Silver
Cradle to Cradle Certified™
What is Cradle to Cradle?
Sarnafil® AT is currently the only single-ply roofing membrane in the UK that has achieved Cradle to Cradle Silver certification. This certification was awarded following an independent assessment by the Cradle to Cradle Products Innovation Institute, which evaluates products based on criteria such as material health, product circularity, renewable energy and carbon management, water stewardship, and social fairness. Further details about the Cradle to Cradle certification process are available at:
https://www.c2ccertified.org/get-certified/product-certification
Download Sarnafil® AT Cradle to Cradle Certificates
Sarnafil® AT White Paper
A White Paper explaining what Cradle to Cradle® is, and which criteria the Sarnafil® AT roofing membrane meets is now available for download.
This White Paper also holds educational value and could contribute to Continuing Professional Development (CPD) points.
Benefits for Specifiers and Building Owners
Sarnafil® AT does not contain oils, plasticisers, chlorine, or heavy metals classified as hazardous.
Sarnafil® AT is Silver Cradle to Cradle® certified in sustainability performance.
QUV tested to >10,000hrs – (EN 13956).
High resistance to impact damage, which helps to avoid punctures during installation and service (EN 13956).
A hybrid technology membrane.
Self-adhesive tapes and detailing membranes offer faster installation than traditional methods such as glues or mechanical fixings.
elds like PVC, with an even wider welding temperature window.
Highly flexible, even at low temperatures (EN 13956).