Appraisal number: 743 (2019)
Date issued: 20 Mar 2019
Thermakraft Covertek 405 Roof and Wall Underlay
Thermakraft Covertek 405 Roof and Wall Underlay is a fire-retardant synthetic building underlay for use under roof and wall claddings. The product consists of a micro-porous water-resistant film laminated to two layers of non-woven spun-bonded polyolefin.
Product Data Sheet COVERTEK 405, Issue 5, September 2020
Installation Guide COVERTEK 405, Issue 2, September 2020
Always refer to the Appraisal in full and the technical literature.