RCM Y-wall is a high-quality flexible calcium silicate cement-based building board, perfect for use as a fire-rated sheathing board. Offering excellent fire properties as well as high levels of dimensional stability, the Y-wall is an exceptional board for use in multiple applications.
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, as well in ceilings offering a non-combustible classification.

Certification:

- BS EN 13501-1 Class A1
- BS EN ISO 1716:2010
- BS EN ISO 1182:2010
- BS 476 Part 4
- BS 476 part 21 and BS 476 part 22 fire-rated through wall solutions
- BS EN ISO 12467
- BS EN 594 Category 1
- BS EN ISO 1015-11
- BS EN ISO 1062-1