Appraisal number: 772
Date issued: 13 Jan 2026
StoArmour Facade Panel System
Description
The StoArmour Facade Panel System is a cavity-based external wall cladding system for residential and light commercial type buildings where domestic construction techniques are used.
The system consists of 50 or 75 mm thick autoclaved aerated concrete (AAC) panels (StoArmour panels) fixed over battens to form a 20 or 40 mm cavity, or timber cavity spacers to form a 40 mm cavity. The coating system consists of a nominal 5 mm thick cement-based render applied to the StoArmour panels, an approximate 2.5 mm thick coat of fibreglass mesh reinforced synthetic resin render (StoArmat Render System only), and an approximate 1-3 mm thick coat of coloured finishing render. The render system is finished with a Sto coating.
Consenting instructions
Always refer to the Appraisal in full and the technical literature.