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Renderflex cellulose fibre cement render carrier board

Verified by manufacturer over a year ago

RCM - Roofing and Cladding Materials Ltd

A cellulose/ fibre cement building board designed as a carrier board for polymer modified render systems.

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+44 (0)800 6124662 Website

Application

Suitable for:

  • Render carrier board.
  • Internal and external wall linings.

Description

Renderflex, a fibre-cement board for use internally as a wall liner and tilebacker board on non-loadbearing and loadbearing timber- and steel-frame substrate walls in new and existing domestic and non-domestic buildings, subject to height restrictions.


Cellulose/ fibre cement building board, specifically designed as a carrier board for polymer modified render systems where no insulation is applied to the board prior to rendering, for new timber frame rendered facades. For projects where insulation is applied first, RCM Cemboard, Multipurpose, Y-Wall or CEM+ are suitable alternatives.


Designed to achieve a strong key between polymer basecoats/ topcoats and the Renderflex. CE marked and conforms to BS EN 12467.


Features and benefits:

  • Dimensional stability.
  • High tensile strength for long term durability.
  • Excellent weathering properties for exposure prior to render application.
  • Impact resistance.
  • Approved by many of the UK render manufacturers. Please contact RCM for further information.
  • Frost resistance: Five star.
  • Fungus and termite attack: Highly resistant.
  • Durability (minimum): 30 years.
  • Smooth front and textured back face.
  • Nominal density: 1380 kg/m³.
  • Bending strength (Modulus of Rupture): 18.8 MPa.
  • Modulus of Elasticity (MoE): 5.5 GPa.
  • Thermal conductivity: 0.47 W/m·K.
  • Nominal Density (Oven Dry) Avg: 1375 kg/m³.
  • Bending Strength (Modulus of Rupture): 10.5 N/mm².
  • Moisture Content Estimated: approx.8.0 %.
  • Soundlnsulation dB Estimated: 28dB for 6.0mm.
  • Biological Resistance: Highly resistant.
  • MoR (Modulus of Rupture) Oven Dry – Across: 19 MPa.
  • MoR (Modulus of Rupture) Oven Dry – Along: 11 MPa.
  • MoR (Modulus of Rupture) Saturated – Across:14 MPa.
  • MoR (Modulus of Rupture) Saturated – Along: 7 MPa.
  • Water Absorption (by dry weight): 30 %.
  • Water Content at EMC (by dry weight): 8 %.
  • Thermal Conductivity (estimate at 20°C): 0.12 W/mk.
  • Moisture Movement (saturate to EMC): 0.06-0.08 %.

General information

Color

Pink

Finish

Smooth

Guidance for specification option:

Front facing.

Textured

Guidance for specification option:

Back facing.

Material

Fibre cement

Shape

Rectangle

Length

2400 mm

Width

1200 mm

Warranty description

30 year

Uniclass

Pr_25_71_11_25 Fibre-reinforced cement boardsPrimary

CAWS

K11/485 Wall sheathing

M20/160 Proprietary cement gauged render

M20/19 Proprietary cement gauged render

Specification data - Fibre-reinforced cement boards

Standard

To BS EN 13501-1.

To BS EN ISO 171.

To BS EN 12467.

To BS EN 13823.

To BS EN 1364-1.

To BS EN 1365-1.

Fire rating

A2-s1, d0.

Guidance for specification option:

(BS 476-6 and -7).

Sheet size

-

Nominal thickness

6 mm.

Guidance for specification option:

25 dB sound insulation.

9 mm.

Guidance for specification option:

28 dB sound insulation.

12 mm.

Guidance for specification option:

30 dB sound insulation.

Length

2400 mm.

Width

1200 mm.

Materials

Mixture of specially treated cellulose fibres, Portland cement, sand and other additives.

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.

Product Reference

Renderflex

Fixings

Steel Frame 4.8 x 38 mm Wing tip self drilling fixing.

Timber Frame 4.2 x 42 mm Climaseal self drilling fixing.

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
AECOsim
-

1

Revit

Revit 2017

5

IFC
-

5

ARCHICAD
-

1

Vectorworks
-

1

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