SFS Direct Fix

SFS Direct Fix is fully tested, KIWA agrément-certified EWI system, primarily for framed structures (SFS) but can also be applied to masonry or concrete supporting walls. Designed for use in high-rise recladding projects, schools and student accommodation, the system achieves an A1 fire classification to BS EN 13501-1 when using our Enviromin (mineral render) and an A2-s1,d0 fire rating when using Envirosil (silicone render) and Speedy Slip flexible brick slip finish.

With a durability design life of 60 years the system offers unparalleled performance with appropriate maintenance.

Key Benefits

  • Fire rated options range from A1 fire classification to BS EN 13501- to A2-s1 do (dependent on the system)
  • EPS system tested to BS 8414
  • Systems available for both LSF frame
  • KIWA BDA Certified
  • Options for compliance with building guarantee companies
  • Supports a high level of acoustic performance in through wall construction
  • Brick and render options available

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Façade Finishes

Enviromin is a high-performance, cement based and polymer modified through coloured mineral thin coat render and is based on a colour fast lime bloom free...
EnviroSil is a pre-mixed, highly water repellent silicone based through colour textured finish, allowing the façade to maintain its cleanliness via the...
SpeedySlip provides the traditional appearance of a brick finished building but with technology of a lightweight acrylic or mineral brick slip finish....
EnviroDash is a high polymer modified through colour dashing receiver which is available in an extensive range of colours which work in conjunction with...
EnviroBrick is an attractive brick effect render, consisting of a cement-based through colour render, requiring only the addition of water. It provides...
A water repellent through colour textured finish offering a low maintenance finish which is waterproof according to VOB, part C, DIN 18363. EnviroCryl...


We pride ourself on the extensive range of accreditations that we offer with our systems. Due to the vast number of variables options that our systems can provide, it is very difficult to cover every permutation. However, we have one of, if not the most, comprehensive range of certification covering EWI in the market:


KIWA BDA Certificate BAW-21-224-S-A-UK


Typical System Build Up LSF

  • Internal lining
  • Lightweight steel frame
  • Internal Stud Insulation
  • Sheathing board min 9mm.
  • Rockwool façade lamella fire break
  • Rail system running horizontally and vertically
  • EPS polystyrene rail system insulation
  • High polymer modified basecoat with reinforcing mesh
  • Extensive range finishes available including render, dash and brick options

Direct Fix : Fire Rating

This system incorporates the use of A1 fire rated Mineral Wool Insulation and has a range of finishes to suit project performance and aesthetic requirements with options for fully A1 non-combustible system finishes.

  • Enviromin Mineral Render Finish – A1 fire rated
  • Envirosil Silicone Render Finish – A2-s1,d0 fire rated
  • Speedy Slip Flexible Brick Slip Finishes A2-s1,d0 fire rated
    Tested to BS EN 13501

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Technical Downloads