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Silkolitt Pro

Silkolitt Pro comprises a high quality silicone rendered finish to non-combustible mineral wool insulation. The Silkolitt Pro External Wall Insulation (EWI) system from Alumasc Facades. by K Rend offers optimum fire protection and a striking contemporary appearance thanks to the Silkolitt+ silicone render finish.

This BBA-approved system comprises the following components:

  • Silkolitt+ Silicone Render
  • Alumasc Facades by K Rend Silicone Primer
  • Alumasc Facades by K Rend Base Coat
  • Alumasc Facades by K Rend Scrim Reinforcement
  • Alumasc Facades by K Rend Insulation Fixing
  • Alumasc Facades by K Rend Pro Mineral Wool Insulation
  • Alumasc Facades by K Rend Bedding Adhesive
  • Substrate

Key Features

The Silkolitt Pro system from Alumasc Facades by K Rend is an A2 fire-rated EWI system that is widely specified to simultaneously provide a thermal and aesthetic upgrade on both low- and high-rise buildings. The Silkolitt+ silicone render finish 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: A2-s1,d0
  • Thermal performance: Typical U Values are:
    • 100 mm Pro insulation ~ 0.30 W/m2K
    • 120 mm Pro insulation ~ 0.26 W/m2K
    • 170 mm Pro insulation ~ 0.19 W/m2K
  • Acoustic performance: Weighted sound reduction index of c. 5 – 8 dB


  • BBA Certificate 00/3766 PS4


  • Choice of 8 standard colours, contact us for other options
  • 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


  • Masonry substrates
  • New build or refurbishment projects
  • Low- and high-rise properties in accordance with Alumasc Facades by K Rend’s High Rise Policy

Contact us

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


System approvals

BBA Approved – Certificate 00/3766 PS4
NHBC Accepted

Performance testing

ETAG004 Guideline for European Technical Approval of EWI Systems

Fire performance

Class 0 surface spread of flame
A2-s1,d0 reaction to fire classification according to BS EN 13501-1
Approved for use in constructions with height greater than 18m (i.e. high-rise) in compliance with BR135


>30 years

Impact resistance

Category II to ETAG004

BBA Certificate (.pdf)

silkolitt Pro (MW) BBA Certificate

CAD Download (.pdf)

silkolitt Pro CAD

Colour Chart (.pdf)

Silicone Colour Chart

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