Building board classified A1 to EN 13501-1
RCM Y-wall is a high-quality flexible calcium silicate cement based building board, suitable for use as a sheathing board in systems requiring fire classification to EN 13501-1 Class A1. Offering fire performance classified to EN 13501-1 Class A1 as well as dimensional stability tested in accordance with BS EN ISO 12467. Y-wall is suitable for a range of applications including sheathing and façade systems.
Y-wall is used primarily as a fire rated sheathing board or building board. Used extensively on both steel frame and timber frame structures, Y-wall is used behind all types of façade solutions.
Fire classification to EN 13501-1 class A1
2400 x 1200mm (6mm, 9mm, 12mm and 15mm) Other board sizes are available
Y-wall can be cut drilled and nailed using conventional hand tools, therefore making many opportunities for application with timber.
For cutting the product in any volume, we recommend the use of an RCM polycrystalline diamond Dart Blade to avoid excessive wear on other blades. Alternatively, RCM offer a complete fabrication service, find out more.
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1200 kg/m3
9-12 MPa
4000 N/mm2
≤0.23 W/mk
≤9%
BS EN 13501-1 Class A1 Non-Combustible
Biological resistance tested in accordance with relevant standards.
Front Face - Smooth
Back Face - Textured
Declared service life: minimum 30 years under intended use conditions.
2400 x 1200mm
6, 9, 12, 15
7.2, 10.8, 14.4, 18
±3mm
±3mm
±0.5mm
BS EN 13501-1:2018 Class A1
BS EN ISO 1716:2018
BS EN ISO 1182:2020
BS EN 1363-1
BS EN 1364-1
BS EN 1365-1
BS 476 Part 4
BS 476 part 22 fire rated through wall solutions
BS EN ISO 12467
BS EN 594 Category 1
BS EN 594:2011
FIX006 - 4.8mm x 38mm Wing tip self drilling fixing
FIX005 - 4.2mm x 42mm Tek self drilling fixing
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Find out more about Y-wall, a BBA Certified calcium silicate-based fibre cement building board classified A1 to EN 13501-1. Suitable for use as sheathing within tested wall constructions and façade systems.
