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Knauf Insulation - Rocksilk® Flat Roof Slab Extra - Flat Roof Insulation

Verified by manufacturer 1 month ago

Flat Roof Slab Extra 95 mm

Knauf Insulation Ltd Variant:

A rock mineral wool insulation slab with the highest mechanical performance in the range, developed for flat roof insulation in mechanically-fixed applications onto all types of roof deck.

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Application

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

Knauf Insulation Rocksilk® Flat Roof Slab Extra is a rock mineral wool insulation slab with the highest mechanical performance in the range, developed for flat roof insulation in mechanically-fixed applications onto all types of roof deck. It is non-combustible with the best possible Euroclass A1 reaction to fire classification, and is manufactured using Knauf Insulation's Krimpact® Technology.

General information

Color

Brown

Finish

Unfinished

Material

Rock mineral wool

Shape

Rectangle

Guidance for specification option:

Slab.

Length

1200 mm

Width

1000 mm

Height

95 mm

105 mm

125 mm

150 mm

Uniclass

Pr_25_57_06_53 Mineral wool insulationPrimary

CAWS

J42/425 Mineral wool (MW) insulation

J42/27 Thermal insulation

J42/23 Mineral wool insulation boards

Product range

Warm Flat Roofs

Specification data - Mineral wool insulation

Standard

To BS EN 13162.

Third-party certification

BBA Certificate 08_4526 Rocksilk Krimpact Flat Roof Slab.
Euroclass A1 Reaction to Fire Classification.
CE Marking.
Green Guide Rating C.
EPD (EN 15804+A2).
EUCEB.
Made in Britain.

Form

Slab.

Facing

Unfaced.

Thickness (minimum)

95 mm.

Width (nominal)

1000 mm.

Thermal conductivity (maximum)

0.039 W/m·K.

Fire performance

Euroclass A1 to BS EN 13501-1.

Recycled content

Up to 35%.

Vapour resistivity

5.00 MN·s/g·m.

Water absorption

<1 kg/m² tested in accordance with BS EN 1609.

Manufacturer guidance

Short term water absorption, WS.

Dimensional stability

Dimensionally Stable. Tested in accordance with BS EN 1604.

Compressive strength (mean value)

90 kPa.

Suitable substrates

Concrete, Metal, Timber, Plywood, OSB.

Guidance for specification option:

Refer to manufacturer for fixing details.

Acoustic performance

Rainfall 37–45.6 LiA dB.
Airbourne 39–52 Rw dB.

Guidance for specification option:

Refer to manufacturer for guidance.

FM approved

Approval Identification: 0003063483/ RR229016.

Environmental Product Declaration (EPD)

EPD available. In accordance with BS EN 15804+A2.

Green guide rating

C.

U-value

-

Manufacturer guidance

Method: calculations should be created using 2D or 3D modelling programs which comply with the methodologies detailed in BS EN ISO 10211.

Durability

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 wall structure in which it is incorporated.

Thermal resistance

2.38 m²K/W.

Sustainability data

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

26.9 kg CO₂ eq/kg

Guidance for specification option:

1 m² of Rock Mineral Wool Rocksilk® Flat Roof Slab Extra with a thickness of 105 mm with R value of 2.69 m2K/W.

Recyclability

Recyclable

Guidance for specification option:

Mineral wool products from Knauf Insulation can be and in some cases are partly recycled at their end of-life, please contact supplier for more information.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

35 %

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Platform Compatible Version
IFC
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1

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1

Literature

Knauf Insulation Rocksilk® Flat Roof Slabs - Product Datasheet

Knauf Insulation Rocksilk® Flat Roof Slabs - Product Datasheet

Rock Mineral Wool - BREEAM Helpsheet

Rock Mineral Wool - BREEAM Helpsheet

Rock Mineral Wool with ECOSE® Technology - Safety Datasheet

Rock Mineral Wool with ECOSE® Technology - Safety Datasheet

Knauf Insulation Solutions Guide

Knauf Insulation Solutions Guide

Knauf Insulation Rocksilk® Flat Roof Slab - BBA Certificate 08/4526

Knauf Insulation Rocksilk® Flat Roof Slab - BBA Certificate 08/4526

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