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Y-WALL Calcium silicate cement external sheathing board

Name: Y-WALL Calcium silicate cement external sheathing board
Brand: RCM - Roofing and Cladding Materials Ltd
SKU: 5tkV6nT211umWChtddYEBE

Verified by manufacturer over a year ago

RCM - Roofing and Cladding Materials Ltd

Third party certifications:

BBA Agrément Certificate
Certificate type

Calcium silicate fibre cement sheathing board.

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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. RCM315 Tape. Show more
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.