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Rocksilk® Flat Roof Slab Extra

Rocksilk® Flat Roof Slab Extra

Knauf Insulation Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Rocksilk® Flat Roof Slab Extra is a BBA certified Rock Mineral Wool slab with the strongest mechanical performance in the range, designed for use in mechanically fixed flat roof build ups.

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+44 (0)1744 766 666 www.knaufinsulation.co.uk

Application

Rocksilk® Flat Roof Slab Extra is a BBA certified Rock Mineral Wool slab with the strongest mechanical performance in the range, designed for use in mechanically fixed flat roof build ups onto all types of roof deck.


Rocksilk® Flat Roof Slabs are used for the thermal insulation of flat roofs. Rocksilk® Flat Roof Slabs are suitable for use under all kinds of single ply membrane, hot applied bitumen systems and mastic asphalt and are suitable for maintenance foot traffic only. Rocksilk® Flat Roof Slabs are suitable for use as an upstand board in warm roof applications when installed with the fixings and waterproof layer as detailed by the membrane manufacturer.

Description

Rocksilk® Flat Roof Slab Extra is a BBA certified Rock Mineral Wool slab with the strongest mechanical performance in the range, designed for use in mechanically fixed flat roof build ups.


It is non-combustible with the best possible Euroclass A1 reaction to fire classification, and is manufactured using Knauf Insulation's Krimpact® Technology.


Features and benefits:

  • Good thermal performance.
  • Non-combustible A1 Euroclass Reaction to Fire classification.
  • Slabs contain a special additive to ensure their water repellency.
  • Manufactured using Knauf Insulation's Krimpact® Technology for high levels of compressive strength and durability.
  • Excellent sound absorption and reduction characteristics.
  • The nature of Rock mineral wool allows slabs to knit together at joints.
  • Dimensionally stable.
  • Compatible with a wide range of single ply membranes.
  • `C` generic BRE Green Guide rating.


Certification:

  • BBA Certificate 08_4526 Rocksilk Krimpact Flat Roof Slab.
  • Eurofins Gold.
  • Euroclass A1 Reaction to Fire Classification.
  • CE Marking.
  • UKCA.
  • EN 15804.
  • EUCEB.
  • Made in Britain.
  • RAL.


Durability:

Rocksilk® Flat Roof Slabs are odourless, rot proof, non-hygroscopic, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria. The product will have a life equivalent to that of the roof structure in which it is incorporated.


Standards and Certification

Rocksilk® Flat Roof Slabs have been assessed by the British Board of Agrément (BBA) under Certificate 08/4526 for use as a thermal insulation layer on limited access flat roofs with concrete, timber or metal decks. The certification offers contractors and specifiers utmost confidence that Rocksilk® Flat Roof Slabs are fit for their intended use and will have a life equivalent to that of the roof structure in which it is incorporated, provided that it is stored and installed correctly. Rocksilk® Flat Roof Slabs are manufactured in accordance with BS EN 13162, ISO 50001 Energy Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as certified by TÜV Nord.


Real performance:

Glass and Rock Mineral Wool are easier to install correctly than other insulants such as rigid boards because they adapt to any slight imperfections in the substrate and knit together, eliminating any air gaps. Evidence shows the absence of air gaps is crucial to achieving real performance in the relevant application.


Environmental:

Rocksilk® Flat Roof Slabs contain no ozone-depleting substances or greenhouse gases. For further environmental information consult the relevant Environmental Product Declaration, available on our website.


Moisture

The physical and chemical characteristics of the fibres are unaltered by wetting. Therefore the thermal properties of Rocksilk® RainScreen Slab are not affected by exposure to moisture and the product will perform as expected once dry.


Handling and storage

Rocksilk® Flat Roof Slabs are easy to handle and install, being lightweight and easily cut to size, where necessary. Rocksilk® Flat Roof Slabs are supplied loose on a hooded (4-LDPE) pallet which is designed for short term protection only. For longer term protection on site, the product should either be stored indoors, or under cover and off the ground. Rocksilk® Flat Roof Slabs should not be left permanently exposed to the elements.

General information

Color

Brown

Finish

Unfaced

Material

Rock mineral wool

Shape

Rectangle

Size

1200 x 1000 mm

Uniclass

Pr_25_57_06_56 Mineral wool slab insulationPrimary
Pr_25_57_06_53 Mineral wool insulation

CAWS

null Mineral wool insulation boards

null Mineral wool insulation

null Mineral wool insulation boards

null Mineral wool insulation boards

B11/240 Thermal insulation

B13/241 Thermal insulation

H11/780 Thermal insulation

J21/425 Mineral wool insulation

H90/400 Thermal insulation

H92/776 Thermal insulation

H92/775 Thermal insulation

J21/230 Insulation

H30/311 Mineral wool thermal insulation

H30/310 Mineral wool thermal insulation

H31/271 Mineral wool thermal insulation

H31/270 Mineral wool thermal insulation

J31/334 Mineral wool insulation

J41/425 Mineral wool (MW) insulation

K40/285 Insulation

K45/425 Insulation

H30/40 Thermal insulation

H31/50 Mineral wool thermal insulation

J31/26 Thermal insulation

J41/26 Thermal insulation

J41/10 Reinforced bitumen membrane warm deck roof covering

J42/27 Thermal insulation

J42/425 Mineral wool (MW) insulation

J21/10 Warm deck roof coating

J42/10 Warm deck roof covering

K10/85 mineral wool insulation

K40/55 Insulation

K45/50 Insulation

Specification data - Mineral wool slab insulation Enhanced data

General requirements

Insulation products generally.

Standard

To BS EN 13162.

Thickness

95 mm.

105 mm.

125 mm.

150 mm.

Facing

Unfaced.

Edges

Square.

Thermal conductivity (maximum)

0.039 W/mK.

Compressive strength (minimum)

90 kPa.

Fire performance

EUROCLASS A1 to BS EN 13501-1.

Thickness tolerance

T5.

Water absorption

WS.

Water vapour permeability

MU1.

Vapour resistivity

5.00 MNs/g.m.

Typical compressive strength

60 kPa and 90 kPa.

Environmental information

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Recyclability

BRE generic Green Guide rating of C.

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Digital objects

Platform Compatible Version Certified to
IFC
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1

2.1
Revit
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1

2.1
Download now from NBS National BIM Library

Literature

Rocksilk® Krimpact Flat Roof Slabs Data Sheet

Rocksilk® Krimpact Flat Roof Slabs Data Sheet

Rock Mineral Wool - BREEAM Helpsheet

Rock Mineral Wool - BREEAM Helpsheet

Rock Mineral Wool with ECOSE® Technology - Safety Data Sheet

Rock Mineral Wool with ECOSE® Technology - Safety Data Sheet

Knauf Insulation Solutions Guide

Knauf Insulation Solutions Guide

08/4526 Rocksilk® Krimpact Flat Roof Slab Range

08/4526 Rocksilk® Krimpact Flat Roof Slab Range

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

08/4526.

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