Testing Reports & Certifications
The independent third-party certifications behind every Interlock® roof. Open any certification below for the verified figures, the embedded report, and a link to the official issuing source.
Certifications
- ICC-ES ESR-1790
- Code compliance under the 2009–2021 IBC & IRC — fire classification, wind-uplift resistance and weather resistance. Held by Interlock Roofing Ltd. Details & report →
- UL 2218 Class 4
- The highest impact (hail) rating — passes a 2-inch steel ball dropped from 20 feet with no cracking or rupture. Details & report →
- Florida FL7263-R7
- Florida Building Code product approval; wind-uplift tested to UL 580 / TAS 125 / UL 1897. Details & report →