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Rocksilk Krimpact Flat Roof Slab

NFRC LogoFor the thermal insulation of flat roofs where a medium level of traffic is required, and hence compressive strength is an issue.

Description

A range of high strength, consistent density, rigid slabs made from rock mineral wool, manufactured using  Krimpact™ technology, specifically designed for use in flat roofing.

The Rocksilk Krimpact Flat Roof Slab product range includes two slab densities:

  • Rocksilk Krimpact Flat Roof Slab
  • Rocksilk Krimpact Flat Roof Slab Extra

Krimpact™ technology realigns the mineral wool fibres during manufacture to increase impact strength without dramatically reducing thermal performance - making an ideal product for use in flat roofs.

Furthermore, Krimpact™ technology gives you a consistent density slab. This ensures better long-term compressive strength, high impact resistance, better thermal performance and a thinner, lighter product compared to other high-strength insulation options.

Application

Rocksilk Krimpact Flat Roof Slabs are for the thermal insulation of flat roofs. Rocksilk Krimpact Flat Roof Slabs are suitable for use under all kinds of single ply membrane, hot applied bitumen systems and mastic asphalt.

  • Rocksilk Krimpact Flat Roof Slab has high compressive strength, where some occasional loading and impact resistance is required.
  • Rocksilk Krimpact Flat Roof Slab Extra is for use where optimum long term compression performance is required.
Rocksilk Krimpact Flat Roof Slab
Performance

Thermal Peformance

Rocksilk Krimpact Flat Roof Slabs have thermal conductivities of 0.038 to 0.039 W/mK

Fire Performance

Rocksilk Krimpact Flat Roof Slabs are classified as Euroclass A1 to BS EN ISO 13501-1.

Benefits
  • Excellent thermal performance
  • Superior compression resistance
  • Excellent acoustic insulation
  • Superior fire performance
Downloads

All Rocksilk Krimpact Flat Roof Slabs are suitable for maintenance foot traffic only.

Standards

The Rocksilk Krimpact Flat Roof Slab product range is made from noncombustible inorganic rock wool, defined as mineral wool in BS 3533: 1981, manufactured in accordance with BSI Quality Assurance Standard BS EN ISO 9001: 2000.

Durability

The Rocksilk Krimpact Flat Roof Slab product range is non-hygroscopic and is treated to ensure its water repellency. It is rot proof, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria. Rocksilk Krimpact Flat Roof Slabs are odourless and non-hygroscopic.

Compressive Resistance

  • Rocksilk Krimpact Flat Roof Slab has a compressive strength of 60 kPa
  • Rocksilk Krimpact Flat Roof Slab Extra has a compressive strength of 90 kPa

Environmental

Rocksilk Krimpact Flat Roof Slabs are free from CFCs, HCFCs and any other material with ozone depletion potential in their manufacture and content and represent no known threat to the environment.

Rocksilk Krimpact Flat Roof Slab’s manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.

Handling and Storage

Rocksilk Krimpact Flat Roof Slabs are easy to handle and install, being lightweight and easily cut to size.

All Rocksilk Krimpact Flat Roof Slab products are supplied on non-returnable wooden pallets wrapped in a polythene shroud for temporary protection during transit and on site. For longer term external storage (stock or site) the pallets should be stored under a secure waterproof covering.

Rocksilk Krimpact Flat Roof Slab should not be left permanently exposed to the elements.

Product Data

Rocksilk Krimpact Flat Roof Slab

Thickness (mm) Thermal conductivity (W/mK) Thermal resistance (m2K/W) Slab Size (mm) Slabs per Pack Area per Pack (m2)
150 0.038 3.90 1800 x 600 16 17.28
145 0.038 3.80 1800 x 600 16 17.28
130 0.038 3.40 1800 x 600 18 19.44
100 0.038 2.60 1800 x 600 24 25.92
80 0.038 2.10 1800 x 600 30 32.40
75 0.038 1.95 1800 x 600 32 34.56
50 0.038 1.30 1800 x 600 48 51.84

All dimensions are nominal

Rocksilk Krimpact Flat Roof Slab Extra

Thickness (mm) Thermal conductivity (W/mK) Thermal resistance (m2K/W) Slab Size (mm) Slabs per Pack Area per Pack (m2)
110 0.039 2.80 1800 x 600 20 21.60
100 0.039 2.55 1800 x 600 24 25.92
80 0.039 2.05 1800 x 600 30 32.40
75 0.039 1.90 1800 x 600 32 34.56
70 0.039 1.75 1800 x 600 32 34.56
50 0.039 1.25 1800 x 600 48 51.84

All dimensions are nominal

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