K-Roc Rainscreen Slab

K15 ACM - BML 120 System Exploded logo



K-Roc Rainscreen Slab is a soft and rigid, stone mineral wool slab containing a water repellent additive, designed for use in buildings with a storey 18m or more above ground level.


  • Thermal conductivity of 0.034 W/m·K

  • Fire Performance Euroclass A1 Reaction to Fire rating



1,200mm x 600mm slab size

Available thicknesses: 80mm, 100mm, 120mm and 150mm.

Thickness & Thermal Performance

Standard Thickness (mm)  U-value (W/m2K)
80 0.26  
100 0.23  
120 0.21  
150 0.18  

NB. Construction detail for above calculations is as follows: 3mm plaster skim, 12.5mm plasterboard, 100mm SFS @ 600mm centres with 100mm glass fibre insulation fill (0.040), 12mm cement particle board, K-Roc Rainscreen Slab insulation with aluminium brackets at 600mm vertical and horizontal centres, vented cavity, rainscreen finish.

The image below shows the recommended fixing pattern with

3 fixings per m2.

  • BES 6001; Issue 3.1
  • ISO 9001
  • ISO 14001


K-Roc Rainscreen Slab is a soft, rigid stone mineral wool insulation with the following properties:
  • Reaction to Fire, Euro Class: A1; 
  • Thermal Conductivity: 0.034 W/m.K / 10 degrees and relative humidity, refer to EN Standard BS EN 13162: 2012+A1: 2015
  • Density: 45kg/m3 ;
  • Water Absorption (Short Term): WS, (Wp): <=1kg/m2 ;
  • Water Absorption (Long Term): WL(P)(Wlp): <=3kg/m2 ; 
  • Water Vapour Transmission: 1Mu, μ.
Fire Performance Euroclass A1 Reaction to Fire rating

Environmental Performance The raw materials used in the manufacture of K-Roc Rainscreen Slab have a high content of recycled materials and this helps to minimise the environmental impact of construction, reducing carbon emissions by diverting materials from landfill and limiting the depletion of finite natural resources. At end of life, K-Roc Rainscreen Slab offer a ‘Cradle to Cradle’ approach to recycling where materials are recycled in a closed loop - used, recycled and reused again without losing any material quality.

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KSF K-Roc Rainscreen Slab PDS

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Kingspan Facades : Greenfield Business Park No.2 : Holywell : Flintshire : CH8 7GJ : UK 
Tel:  +44 (0) 1352 716100 email: info@kingspanfacades.co.uk

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