Undercloak for mortar bedded verge
Consistent 3.2mm thickness, 150mm wide in 4’ lengths.
Also available 4.5mm in both 4’ and 8’ lengths and 300mm wide x 4’ for wider verge overhangs. Low moisture movement and resistance to water damage makes this autoclaved board suitable for other semi-exposed applications such as roofline soffit. Popular on roof refurbishments and traditional verge details particularly in conjunction with natural slate.