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Silkolitt Exicco Lite

Silkolitt Exicco Lite is an NHBC-compliant drained cavity system that comprises the Silkolitt+ silicone rendered finish applied over the Alumasc Lite grey EPS insulation board. The Silkolitt Exicco Lite system from Alumasc Facades is typically used with new build steel frame constructions with heights of less than 18 m.

This BBA-approved system comprises the following components:

  • Silkolitt Silicone Render
  • Alumasc Silicone Primer
  • Alumasc Base Coat
  • Alumasc Scrim Reinforcement
  • Alumasc insulation fixing
  • Alumasc Lite grey EPS insulation
  • Alumasc Exicco Rail
  • Steel Frame
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Key Features

Silkolitt Exicco Lite from Alumasc Facades by K Rend is a lightweight and cost-effective drained cavity EWI system that is suitable for low-rise buildings. The drained cavity behind the insulation ensures that any interstitial moisture escapes without detriment to the performance of the system. The silkolitt+ silicone render provides a clean and contemporary finish with a wide choice of colours and textures available to suit the architect’s design requirements.

Key Performance Criteria:

  • Fire performance: B-s1,d0
  • Thermal performance: Typical U Values are:
    • 90 mm Lite insulation ~ 0.30 W/m2K
    • 120 mm Lite insulation ~ 0.25 W/m2K
    • 160 mm Lite insulation ~ 0.19 W/m2K


  • BBA Certificate 17/5471 PS1 – Grey EPS (Lite) onto steel frame
  • BBA Certificate 17/5471 PS2 – Grey EPS (Lite) onto timber frame


  • Choice of 8 standard colours, but available in any NCS colour reference
  • UV resistant colour pigments
  • Choice of 3 grain sizes – 1.5 mm, 2.0 mm or 3.0 mm – to offer a range of textural finishes
  • High water and dirt repellency that protects the façade against freeze-thaw failure & fungal growth
  • High tensile adhesion strength that prevents delamination and flaking
  • Good flexibility providing resistance against cracking and increasing durability


  • Framed substrates – timber or steel
  • New build projects
  • Low-rise properties (less than 18 m)

Contact us

Request a visit, book a seminar online, ask our technical team, request a quote or contact customer service.


System approvals

BBA Approved (steel frame) – Certificate 17/5471 PS1 – Restricted to 18 m
BBA Approved (timber frame) – Certificate 17/5471 PS2 – Restricted to 18 m
NHBC Accepted

Performance testing

ETAG004 European Technical Approval of EWI Systems
BS EN 12865 wind driven rain assessment
ETAG004 dynamic wind uplift test

Fire performance

Class 0 surface spread of flame
B-s1,d0 reaction to fire classification according to BS EN 13501-1
Approved for use in constructions with height up to 18 m


> 30 years

Impact resistance

Category II according to ETEAG004

BBA Certificate (.pdf)

  • silkolitt Exicco lite (steel frame)
  • silkolitt Exicco lite (timber frame)
  • CAD Download (.zip)

  • silkolitt lite
  • BIM Files (.zip)

  • Exicco (drained cavity)
  • Colour Chart (.pdf)

  • Silicone colour chart
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