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Vermiculux®-S

Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Promat UK

Provides 240 minutes' (maximum) fire protection to structural steel.

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+44 (0)800 145 6033 www.promat.com
Application

  • Designed to provide fire protection for buildings storing high value items or assets including museums, data centres and bonded warehouses.
  • Can be used during early stages of construction, when a building is not weathertight.
  • Where additional fire safety measures are required for high risk areas, such as boiler or plant rooms, transport infrastructure and power stations.

Used to provide, one, two, three or four sides encasements to:

  • Universal columns and beams ('I' or 'H' sections), joists and rolled steel joists (RSJs).
  • Structural hollow sections.
  • Bracing.
  • Lattice beams.
  • Partially exposed members.
  • Perimeter beams.
  • Beams supporting composite floors with profiled metal decking.
  • Wind posts.

Description

An A1 non-combustible calcium silicate board which provides 30–240 minutes' fire protection to structural steel. The product is suitable for column and beam encasements and is moisture resistant.

Offers a permanent dimensional stability, so in the event of a fire it reduces the speed at which the steelwork will heat up, allowing it to maintain its loadbearing capacity for longer.

Features and benefits:

  • Fully traceable processes and products.
  • Moisture resistant.
  • Mould resistant.
  • Flexible.
  • Durable.
  • Easy to decorate.
  • Comprehensively strong.
  • Boards can be painted with emulsion or water-based paints.

Exposed surface area-to-volume (A/V) ratio for column and beam encasement:

Refer to the Promat Passive Fire Protection Handbook (or the ASFP Yellow Book) and consult the manufacturer for further details.

Applications:

  • Designed to provide fire protection for buildings storing high value items or assets including museums, data centres and bonded warehouses.
  • Can be used during early stages of construction, when a building is not weathertight.
  • Where additional fire safety measures are required for high risk areas, such as boiler or plant rooms, transport infrastructure and power stations.

Used to provide, one, two, three or four sides encasements to:

  • Universal columns and beams ('I' or 'H' sections), joists and rolled steel joists (RSJs).
  • Structural hollow sections.
  • Bracing.
  • Lattice beams.
  • Partially exposed members.
  • Perimeter beams.
  • Beams supporting composite floors with profiled metal decking.
  • Wind posts.

Specification data
Product Reference

Vermiculux®-S

Thickness

20 mm

25 mm

30 mm

35 mm

40 mm

50 mm

Standard product features

Size (l x w):

2500 x 1200 mm.

Surface finish:

  • Front face: Smooth, sanded.
  • Rear face: Honeycomb pattern.

Technical characteristics:

  • Material: Calcium silicate.
  • Combustibility: Non-combustible.
  • Surface spread of flame: Class 1. (Class 0 Building Regulations Classification).
  • Edge: Square.
  • Weight (approximately): 9.6–24 kg/m².
  • Flexural strength: ≥1.7 N/mm².
  • Tensile strength (parallel): 0.44 N/mm².
  • Dry density: 480 kg/m³ (average).
  • Alkalinity: pH 9.
  • Thermal conductivity at 20°C: 0.09 W/m·K.
  • Coefficient of expansion (25–105°C): 7.0 x 10^-6 m/m·K.
  • Nominal moisture content (ambient): 3.5%.
  • Moisture movement (ambient to saturated): ≤0.15%.

Third party certifications
  • Warringtonfire: Certificate: WF 407855
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