Wall System 1 – Applied to Framed Structures

External wall insulation systems are extensively used on lightweight framed structures and direct-fix projects. The speed at which they can be erected and weatherproofed provides significant benefits to the developer. Removing the cladding from the critical path, bringing forward the internal trades and thereby shortening the contract period and eliminating the problems associated with brick and blockwork construction. This method of construction has proven extremely popular over recent years.

The details that follow demonstrate the use of the SPSenvirowall systems on lightweight steel frames although the principle operates equally effectively on timber frame structures.

Wall System 1 - Components

  • Wall System 1 applied to Framed Structures

    Highly cost effective EWI solution for framed structures.

Façade Finishes

SpeedySlip provides the traditional appearance of a brick finished building but with technology of a lightweight acrylic or mineral brick slip finish....
The BrickStick system offers the flexibility of a brick slip system with the traditional look, durability and feel of real brick work. Developed to complement...
EnviroBrick is an attractive brick effect render, consisting of a cement-based through colour render, requiring only the addition of water. It provides...
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...
A water repellent through colour textured finish offering a low maintenance finish which is waterproof according to VOB, part C, DIN 18363. EnviroCryl...
Envirorend basecoat is a reinforcing and levelling basecoat coat used in combination with reinforcement mesh. Applied directly onto the face of the insulation...


Enhanced Performance

  • Thermal Performance
  • Weather and Thermal Protection
  • BBA Certification
  • Accepted by NHBC and TRADA
  • Design life up to 60 years
  • Multiple insulation thicknesses available

Long Term benefit

  • Lightweight
  • Design life up to 60 years
  • Highly cost effective solution for framed structures
  • Extensive range of finishes available
  • Range of insulation options offered
  • Fast method of façade construction

Technical Information

Howard Gardens


Howard Gardens, student accommodation in Cardiff is set to be available ahead of the 2020/21 academic year. The £20 million development from RGB Group offers a 390-bed student accommodation close to the...

Wall System 1 Case Studies

  • Cumberland Towers Case Study


    Cumberland Towers
  • The Depot Case Study


  • Finzels Reach Case Study


  • Newgate Centre Case Study


  • Premier Inn Cardiff Case Study

    Cardiff Bay

  • Langley Academy Case Study


  • TRS Apartments


  • Aurora


Insulation Choices

Expanded Polystyrene Insulation

  • 20mm – 300mm thickness
  • Age cured fire-retarded polystyrene
  • Lambda 0.032 – 0.038w/mK
  • Excellent value
  • User friendly
  • BREEAM Rating A+

Mineral Wool Insulation

  • DD Slab 30mm – 200mm
  • Façade lamella 30mm – 200+ mm
  • High density and compressive strength mineral wool
  • Lambda 0.036 – 0.040w/mK
  • Non-combustible
  • Environmentally friendly
  • Thermo-dimensionally stable
  • Façade lamella – no requirement for mechanical fixings

Phenolic Insulation

  • 20mm – 120mm thickness
  • CFC & HCFC free
  • Lambda 0.021 – 0.024W/mK
  • Excellent thermal performance
  • Good fire performance

Related Products

Training Courses Available for Wall System 1


Beads for a rendered façade will ensure the best finished look, ensure durability and help protect the render from water damage and cracking.
The Benx range of silicone, acrylic and mineral renders are a great way to achieve a perfect and long lasting finish.
Insulation products for walls, roofs and floors We supply three key types for both EWI and Rainscreen Cladding Systems.

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