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Klasse C-board® Calcium Silicate Cement External Sheathing Board - Non-Combustible Board

Verified by manufacturer 1 month ago

Klasse Group Ltd Third party certifications:
  • EPD

    EPD

    Certificate type

  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

High-performance calcium silicate cement board for applications that are looking for a robust A1 non-combustible product.

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Application

Highly suitable for modular and offsite builds; can also be used in all types of facade solutions as well as many floor and roof constructions.

Description

This is the ultimate board with a high flexural strength, impact strength, durability, and high racking resistance. Rated as a Category A board to BS EN 12467 where the board may be subjected to heat, high moisture and severe frost. It also has good acoustic and thermal properties to meet various end applications.


Features and benefits:

  • Reaction to Fire: Euroclass A1, fully non-combustible and suitable for structures over 18 m.
  • High racking strength: C-board has a high level of dimensional stability making it a good choice in multiple applications, but particularly when racking strength is required.


Other points to consider:

  • Acoustic performance: Acoustically tested according to ISO 10140-3. C-board provides an excellent acoustic solution when combined with SFS and stone mineral wool infill.
  • Extremely durable when compared to all other types of boards. It can withstand all weather conditions and is highly suitable for use in places where the climate is extreme.
  • C-board construction will not add fuel when used in a facade capacity. It will reduce the transmission of a fire if other materials combust in the facade.

General information

Color

Grey

Finish

Matt

Material

Fibre cement

Shape

Rectangle

Length

2400 mm

Width

1200 mm

Height

Manufacturer guidance

Thickness.

Uniclass

Pr_25_71_11_25 Fibre-reinforced cement boardsPrimary

CAWS

K11/485 Wall sheathing

Specification data - Fibre-reinforced cement boards

Standard

To BS EN 12467.

Fire rating

To BS EN 13501-1, Class A1.

Guidance for specification option:

  • To BS 476-4: 1970, Non-combustible.
  • Fire propagation index I = 0.7 as per BS 476-6:1989+A1:2009.
  • Surface spread of flame Class 1 as per BS 476-7:1997.
  • Ignitability: Class ‘P’ Not Easily Ignitable as per BS 476-5:1979.
  • Flame Spread Index (FSI) to ATSM E84: 0.
  • Smoke Developed Index (SDI) to ASTM E84: 30.

Weather resistance

To BS EN 12467, category A.

Bending strength

To BS EN 12467 and IS 14862:2000: Longitudinal: 14 MPs; Transverse: 8 MPa..

Guidance for specification option:

Consult manufacturer for further strength and point load characteristics.

Sheet size

-

Nominal thickness

4 mm.

6 mm.

8 mm.

10 mm.

12 mm.

16 mm.

18 mm.

Length

2440 mm.

Guidance for specification option:

Standard size. Consult manufacturer for options if required.

Width

1220 mm.

Guidance for specification option:

Standard size. Consult manufacturer for options if required.

Edges

Square.

Finish as delivered

Uncoated.

Colour

Grey.

Density

>1200 kg/m³.

Guidance for specification option:

Apparent dry density, to IS 4862:2000 & BS EN 12467.

Thermal conductivity

To ASTM C177 & ISO 8302, 0.18 W/m·K.

Other requirements

Moisture content: <12%; Surface alkalinity (pH): 8–9.

Guidance for specification option:

Consult manufacturer's literature for further details such as acoustic characteristics and environmental data.

Sustainability data

Material

Fibre cement

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

13.4 kg CO₂ eq/m²

Recyclability

100% recyclable - reusable material, does not contain any hazardous substances.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

5 %

Third party certifications

BIM objects

Platform Compatible Version
Revit
-

1

IFC
-

1

Third party certifications

EPD

EPD

C-board EPD

BBA Agrément Certificate

BBA Agrément Certificate

Klasse C-board BBA Certificate

Literature

Klasse C-board Brochure

Klasse C-board Brochure

Klasse C-board Calcium Silicate Cement Board TDS

Klasse C-board Calcium Silicate Cement Board TDS

Klasse C-board Calcium Silicate Cement Board MSDS

Klasse C-board Calcium Silicate Cement Board MSDS

Klasse C-board Installation Guide

Klasse C-board Installation Guide

Case studies

Klasse G-Board & C-Board | Trident Point, Harrow

Klasse G-Board & C-Board | Trident Point, Harrow

Klasse C-board | Green Court, Dartford

Klasse C-board | Green Court, Dartford

Klasse C-board | Shinfield Studios, Reading

Klasse C-board | Shinfield Studios, Reading

Klasse C-board | Gallions Reach, Royal Albert Wharf

Klasse C-board | Gallions Reach, Royal Albert Wharf

Klasse C-board | Compass School, Bermondsey

Klasse C-board | Compass School, Bermondsey

Klasse C-board | Kentish Town, Camden

Klasse C-board | Kentish Town, Camden

Klasse C-board | New Build Office, Selkirk

Klasse C-board | New Build Office, Selkirk