QA Certificate
Certificate type
Rocksilk® RainScreen Slab is a rock mineral wool slab with a black glass veil facing, designed for use as sheathing insulation in rainscreen facade systems both below and above 18 m in height.
Designed for use as sheathing insulation in rainscreen façade systems both below and above 18 m in height.
Recommended for use in rainscreen façade systems using a timber, SFS, masonry or reinforced concrete substrate.
Also recommended for use in partial fill applications, behind a steel or timber frame with a masonry outer facade.
A rock mineral wool slab with a black glass veil facing, designed for use as sheathing insulation in rainscreen facade systems both below and above 18 m in height.
It is non-combustible with the best possible Euroclass A1 reaction to fire classification, and is manufactured using the manufacturer's exclusive bio-based binder, ECOSE® Technology.
Features and benefits:
Standards and certification:
The certification offers evidence that Rocksilk® RainScreen Slab is fit for its intended use and will have a life equivalent to that of the wall structure in which it is incorporated, provided that it is stored and installed correctly.
Manufactured in accordance with BS EN 13162, ISO 50001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety 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:
Contains no ozone-depleting substances or greenhouse gases. For further environmental information consult the relevant Environmental Product Declaration (EPD), available on the manufacturer's website.
Moisture:
The physical and chemical characteristics of the fibres are unaltered by wetting. Therefore the thermal properties of the slab are not affected by exposure to moisture and the product will perform as expected once dry.
Thermal performance:
The U-value of a proprietary rainscreen facade system is dependent on the degree of thermal bridging in the system. Calculations should be created using 2D or 3D modelling programs which comply with the methodologies detailed in BS EN ISO 10211.
Consult the manufacturer for details of 3D numerically modelled U-value calculations compliant with BS EN ISO 10211 under the BBA/TIMSA U-value and Condensation Risk Analysis Competence Scheme.
Color | Black |
Finish | Tissue faced |
Material | Rock mineral wool |
Shape | Rectangle |
Size | 1200 x 600 x 100 mm 1200 x 600 x 120 mm 1200 x 600 x 150 mm |
Uniclass | |
CAWS | J31/23 Mineral wool insulation H11/110 Curtain walling H20/150 Sheet cladding H20/155 Sheet cladding H92/776 Thermal insulation H30/311 Mineral wool thermal insulation H30/310 Mineral wool thermal insulation P10/42 Mineral wool insulation slabs fixed to backing wall P10/217 Insulation slabs fixed to backing wall H20/10 Sheet cladding |
General requirements | Insulation products generally |
Standard | To BS EN 13162. |
Thickness | 100 mm.120 mm.150 mm. |
Facing | Tissue faced. |
Edges | Square. |
Density | 30–250 kg/m³. |
Thermal conductivity (maximum) | 0.034 W/m·K. |
Compressive strength (minimum) | Manufacturer's standard. |
Fire performance | Euroclass A1 to BS EN 13501-1 |
Vapour resistivity | 5.00 MN·s/g·m. |
Wind load | 3.6 kPa (76 m/s). |
Thickness tolerance | T2|T4 |
Durability | The product will have a life equivalent to that of the wall structure in which it is incorporated. |
Water absorption | WS|WS. |
Water vapour transmission | MU1|MU1 |
Dimensional stability | DS (70,90) {c} |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
RecyclabilityBRE generic Green Guide rating of A+. | - |
Platform | Compatible | Version | Certified to |
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![]() | - | 1 | 2.1 |
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Knauf Insulation Rocksilk RainScreen Slab & RS60 EPD S-P-03784
Knauf Insulation Rocksilk® RainScreen Slab - Design Guide
Knauf Insulation Rocksilk® RainScreen Slab Declaration of Performance
Knauf Insulation Rocksilk® RainScreen Slab Insulation Data Sheet
Rocksilk® RainScreen Slab - Installation guide
Rocksilk® RainScreen Slab Behind Masonry - Installation guide
Rock Mineral Wool - BREEAM Helpsheet
Rock Mineral Wool with ECOSE® Technology - Safety Data Sheet
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