Appraisal number: 793
Date issued: 14 Jun 2019
Craftstone Real Stone Veneer System
Description
The Craftstone Real Stone Veneer 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 a natural stone veneer using pre-chosen and prepared elements of natural quarried stone. The stone is bonded to fibre-cement backing sheets, which are fixed over timber battens to form a 20 mm cavity. The mortar is mechanically anchored through to the structural wall framing steel with anchor ties and screws.
The system incorporates a primary and secondary means of weather resistance (first and second line of defence) against water penetration by separating the cladding from the external wall framing with a nominal 20 mm drained cavity. The first line of defence is the sealant-coated fibre-cement (and associated tapes and flashings), the second being the 20 mm drained cavity separating the cladding from the wall framing.
Consenting instructions
Always refer to the Appraisal in full and the technical literature.