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Application

  • Render carrier board for external facade systems (ventilated or non-ventilated).
  • Render carrier board for an external ceiling.
  • Barge board, sheathing board and backer board for brick slips.
  • Render carrier for thermal upgrade of masonry.

Description

Siniat Bluclad is a cement fibre board suitable for external sheathing, direct render and other textured finishes. The board has outstanding dimensional stability, making it suitable as a substrate for a variety of thin-coat polymeric renders. Bluclad is available in a standard 10 mm thickness, and has a textured surface for rendering.

Features and benefits:

  • Weather-resistant.
  • Easy to cut, work and decorate.
  • High dimensional stability.
  • BRE Global certificate 057/99.
  • BBA-certified.
  • CE marked according to EN 12467 Category B, Class 2.

Application:

  • Render carrier board for external facade systems (ventilated or non-ventilated).
  • Render carrier board for an external ceiling.
  • Barge board, sheathing board and backer board for brick slips.
  • Render carrier for thermal upgrade of masonry.

General information
Material

Portland cement, selected mineral fillers, including mica (providing extra-high dimensional stability and low hydric movement), organic reinforcing fibres and functional additives. The boards receive a hydrophobic treatment on all surfaces

Size

1200 x 2400 x 10 mm

Uniclass 2015 Fibre-reinforced cement boards (Pr_25_71_52_25)
Specification data
Product Reference

Siniat Bluclad Board

Standard product features

Colour:

Beige, and exhibits shiny particles of mica crystals visible on both sides of its surface.

Material:

Portland cement, selected mineral fillers, including mica (providing extra-high dimensional stability and low hydric movement), organic reinforcing fibres and functional additives. The boards receive a hydrophobic treatment on all surfaces.

Edges:

Square.

Size:

1200 x 2400 x 10 mm.

Weight:

33.9 kg.

Finishing:

When used in ventilated facade, the board can be butt-jointed. When used in a non-ventilated facade, the board should be installed with a 3 mm gap. There is no need to treat the joints between boards before installing the render systems. To reduce water ingress during construction, joints may be sealed with silicone sealant. Suitable with acrylic-based renders only; consult the manufacturer for details.

Fixing:

The board can be fixed to timber frame using the countersunk stainless steel screws, and to a metal frame with countersunk bi-metal screws for metal thicknesses of up to 2 mm.

Technical characteristics:

  • Reaction to fire (to BS EN 13501-1): Limited combustibility, Euroclass A2.
  • Density (to EN 12467): Dry, mean: 1180 kg/m³; dry, minimum: 1000 kg/m³.
  • Mass: 11.8 kg/m² (allow 14 kg/m² for transport and handling, as the board can absorb moisture during transport).
  • Thermal conductivity, λR (to BS EN 12524): 0.19 W/m·K.
  • Thermal resistance, R: 0.048 m²K/W.
  • Water impermeability (to EN 12467): Pass.
  • Durability requirements (to EN 12467): Warm water: pass; soak-dry: pass; freeze-thaw: pass; heat-rain: pass.
  • Surface water absorption (to EN 520): face: 40 g/m²; back: 50 g/m².
  • Total water absorption (to EN 520): 11%.
  • Total water absorption, 24 hours (ad hoc): 30%.
  • Moisture resistance: Maximum water uptake after two-hour total immersion in water: <3%.
  • Water vapour resistance factor (to BS EN ISO 12572): 17–21 μ.
  • Mould resistance: Mould-resistant with zero biodegradability.
  • Strength (to BS EN 520): Flexural breaking load (perpendicular): 875 N, flexural breaking load (parallel): 1300 N.

- Strength (to BS EN 12467):

  • Bending strength (perpendicular): >10.4 N/mm², bending strength (parallel): >16.9 N/mm²
  • Modulus of elasticity (perpendicular): MOE >7.5 kN/mm², modulus of elasticity (parallel): MOE >8.5 kN/mm².

Literature