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Y-WALL Calcium silicate cement external sheathing board

Verified by manufacturer 9 months ago

RCM - Roofing and Cladding Materials Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Calcium silicate fibre cement sheathing board.

Jump to:
BOS
+44 (0)800 6124662 Website

Application

Suitable for:

  • Sheathing board on metal and timber frame.
  • OEM Application where improved strengths and density are required.
  • Fire rated flooring and roofing.
  • Fire rated walling.
  • Fire rated sheathing board.
  • Ceilings.
  • Partition walling.
  • OEM applications for improved strength and density.
  • Recommended for buildings above 18 m.

Description

RCM Y-wall is a high-quality flexible calcium silicate based fibre cement building board, perfect for use as a fire rated sheathing board. Offering excellent fire properties as well as high levels of dimensional stability, 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 facade solutions, as well in ceilings offering a non-combustible classification. Y-wall is suitable for modular construction methods.


Features and benefits:

  • Fire rated to EN 13501-1 class A1.
  • BBA approved.
  • Flexible and strong.
  • Excellent water resistance.
  • Easy to use.
  • High levels of dimensional stability.
  • Integrates with other RCM products.


For use externally as a structural and non-structural sheathing board behind facade/rainscreen cladding applied to lightweight steel and timber frames, and also as an internal lining in domestic and non-domestic buildings.


Y-Wall is an integral element in a wide range of innovative certified facade solutions offered by the Benx Group. Further information can be found by visiting the Benx website at www.benx.co.uk.


General information

Color

Yellow

Grey

Finish

Smooth

Guidance for specification option:

Front face.

Textured

Guidance for specification option:

Back face.

Manufacturer guidance

RCM Y-wall has one smooth face and one textured face, the smooth face should be fixed outermost.

Material

Cement

Guidance for specification option:

Mixture of cement, lime, calcium silicate and other additives.

Shape

Rectangle

Square

Length

1200 mm

2400 mm

2800 mm

3050 mm

Width

1200 mm

Uniclass

Pr_25_71_11_25 Fibre-reinforced cement boardsPrimary

CAWS

K11/485 Wall sheathing

K11/60 Board

K11/795 Wall lining on metal framing

K11/845 Cement-bonded particleboard

K11/890 Board

Specification data - Fibre-reinforced cement boards

Standard

To BS EN 12467.

Fire rating

A1 in accordance with BS EN 13501-1: 2007.

Guidance for specification option:

Behaviour in relation to fire: the board has a reaction to fire classification of A1 in accordance with BS EN 13501-1 : 2007.

BS 476-4 non-combustible; one and two hour.

Weather resistance

Manufacturer's standard.

Guidance for specification option:

The design water vapour resistivity of Y-WALL board can be taken as 164 MN·s/g·m. Walls must have suitable weather protection on the outside, and a vented cavity.

The product should be treated as conventional sheathing board with regard to detailing and damp-proofing at openings, eaves and sole plate, and the fixing of wall ties. Where required by design, the addition of a breather membrane must be in accordance with BS 5250 : 2011.

Sheet size

-

Nominal thickness

6 mm.

Guidance for specification option:

24 dB sound insulation.

Nominal mass: 7.3 kg/m².

9 mm.

Guidance for specification option:

29 dB sound insulation.

Nominal mass: 11.1 kg/m².

12 mm.

Guidance for specification option:

31 dB sound insulation.

Nominal mass: 14.6 kg/m².

15 mm.

Guidance for specification option:

Nominal mass: 18.2 kg/m².

Length

1200 mm.

2400 mm.

2800 mm.

3050 mm.

Special order.

Guidance for specification option:

Non-standard. Consult manufacturer for details including minimum order quantity and lead time, and insert requirement.

Width

1200 mm.

Special order.

Guidance for specification option:

Non-standard. Consult manufacturer for details including minimum order quantity and lead time, and insert requirement.

Edges

Manufacturer's standard.

Colour

Yellow.

Modulus of Rupture

9–12 MPa.

Accessories

None.

RCM Foil Tape.

Guidance for specification option:

Waterproofing seal.

RCM Intusil.

Guidance for specification option:

Neutral cure sealant for use in gaps and joints.

RCM Joint Seal.

Guidance for specification option:

Air tightness seal.

RCM220 EPDM.

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Fixings

Guidance for specification option:

Recommended fixings:

For fixing into SFS framing, 4.8 x 38 mm self-drilling wingtip fixings suitably treated against corrosion should be used.

For fixing into timber framing, 4.2 x 42 mm self-drilling fixings suitably treated against corrosion should be used.


RCM Y-WALL edge distance is 15 mm except at the board corners where fixings should be moved up or down to achieve 50 mm. Fixings should be fixed using a maximum 600 x 300 mm grid pattern.

Third-party approval

BBA Certificate 14/5109.

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Vectorworks
-

1

AECOsim
-

1

ARCHICAD
-

1

IFC
-

5

Revit

Revit 2017

5

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

14_5109_Calcium_Silicate_Sheathing_board_Y-Wall_BBA_Certificate

Literature

14/5109 - Calcium Silicate Sheathing Board - Y-WALL

14/5109 - Calcium Silicate Sheathing Board - Y-WALL

Board Fixing Guide - Y-WALL

Board Fixing Guide - Y-WALL

Declaration of Performance Certificate for Y-WALL

Declaration of Performance Certificate for Y-WALL

Material Safety Data Sheet - Y-WALL

Material Safety Data Sheet - Y-WALL

Safety Data Sheet for Y-WALL

Safety Data Sheet for Y-WALL

Y-WALL Fixing Guide

Y-WALL Fixing Guide

Technical Data Sheet- Y-WALL

Technical Data Sheet- Y-WALL

Case studies

Essex University - The Pastures

Essex University - The Pastures

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