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12mm RCM Cement Particle Board 2400 X 1200mm (8′ x 4′)

Code: IW8139


  • Fire rated to EN 13501-1 class B-s1, d0
  • High impact resistance
  • Good water resistance
  • Improved fire performance over timber
  • Great strength and stability
  • Improved strength and density for OEM applications
  • Excellent acoustic properties
  • Integrates with other RCM products


We have a minimum order requirement of £216 including VAT. Any orders above £216 are subjected to the standard delivery charge of £36 including VAT. Orders at £500 or over are delivered free of carriage charge. See Full Transport Policy

In Stock

Delivery Time TBC
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Open to businesses & public



High-performance cement bonded particle building board

RCM Cemboard is a rigid, medium density, high-performance cement bonded particle building board that offers great strength and stability with the workability of wood.

Cemboard is used primarily as an external sheathing board. It provides excellent acoustic properties making it an excellent acoustic building board. Used extensively on both metal and timber frame structures, it is also a great choice for modular and offsite builds.

Cemboard can be used behind all types of facade solutions, as well as in many acoustic floor and roof constructions.


RCM Cemboard can be cut, drilled, and nailed using conventional hand tools; offering many of the properties of timber.

For cutting the product in any volume, we recommend the use of an RCM poly crystalline diamond Dart Blade to avoid excessive wear on other blades. Alternatively, RCM offers a complete fabrication service, please contact our technical department for details.

Key applications

  • Sheathing board
  • Acoustic flooring
  • High impact partitioning
  • Acoustic roofing
  • Shuttering
  • OEM applications


Additional information


Floor, Roof, Walls



Fire Rating




Thermal conductivity

0.020 W/mK








Cement Based

Product type




Product Documents

Questions & Answers (3)

Questions and answers of the customers

    12MM RCM CEMENT PARTICLE BOARD Is this board fire rated to 30mins?
  1. 1 vote
    Q 12MM RCM CEMENT PARTICLE BOARD Is this board fire rated to 30mins? answer now
    Asked by Andy west on June 10, 2021 5:28 am
    Answered by the admin

    Hello Andy this product has a fire rating of B-s1,d0 ( B - Limited contribution to fire, s1 - Emissions absent or very little d0 - No burning droplets ) which isn't a non-combustible product.


    We can now offer a new product called Y-wall RCM Cement Building Board which is  EN 13501-1 class A1 ( non-combustible board ), however, it hasn't got fire test records in minutes.


    You can also find the infamous Magply Fire Rated Boards that should meet your fire rating requirements (please click here for further information on the product Fire Rating Brochure ) which is available to purchase at our sister department: https://sheetmaterialswholesale.co.uk/?s=magply&post_type=product&dgwt_wcas=1

  2. Is this equivalent to knauf Aquapanel boards?
  3. 1 vote
    Q Is this equivalent to knauf Aquapanel boards? answer now
    Asked by Minesh Patel on June 9, 2021 4:08 pm
    Answered by the admin Hello Minesh, the RCM Particle Board have a lower class of fire rating, unlike the Knauf Aquapanel boards which are non-flammable.  Also, it depends on the application that you intend to use the product as Knauf Panelboards divide into exterior rendering and interior use boards.         We do stock non-combustable  Y-wall Boards for internal applications use and our sister department has Magply Exterior Rendering Boards
  4. Is it enough water resistant to fix it around the basement of the house
  5. 0 votes
    Q Is it enough water resistant to fix it around the basement of the house answer now
    Asked by Victor on June 3, 2021 12:35 pm
    Answered by the admin Hello Victor, we stock a product that is just right for the job of insulating a basement produced by Kingspan and is called GreenGuard which is resistant to ground moisture penetration.

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