Compliance and Certifications
Fire Performance & Compliance



All Nimbus waterproofing systems are independently verified for fire performance and meet UK and European standards.
Our BBA-accredited systems are deemed suitable for use across any part of a roof.
Nimbus Fire Test Reports are available on request. Please contact our technical team for copies and guidance.

The Nimbus Guarantee
The Nimbus Single Point Guarantee sets the standard for reliability in flat roof protection. Offering up to 30 years of comprehensive cover, it ensures watertight performance, lasting durability, and complete confidence in your roofing system.
Unlike standard warranties, the Nimbus Guarantee covers all Nimbus-supplied products and approved installations under a single point of responsibility. This means there is no split liability, just one trusted guarantee for your entire roof.
For added value, the guarantee is:
Fully transferable to future property owners, strengthening the long-term asset value of your building
Backed by insurance, providing extra reassurance and financial protection
Recognised across the industry, giving architects, specifiers, and building managers peace of mind
With Nimbus, you can be confident your flat roof is protected, compliant, and built to last.