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Wall Build-Ups

EWI Pro systems are built to last, offering a range of external wall solutions for improving thermal comfort and external appearance. The following are some typical external wall insulation systems using EWI Pro materials. As demonstrated, our systems are highly versatile and can be used to create numerous external wall insulation systems for a range of properties and substrates.

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Brick/Block Mineral Wool System image

Substrate Preparation

The substrate must be clean, dry and dust free. It then needs to be primed using the Water Based Primer or the Universal Primer, both of which will help reduce the absorptive capacity of the substrate.

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Starter Track & Clip-on Profile

The starter track is attached to the substrate above the DPC. This provides a level surface for the insulation to sit on; it also protects the base of the insulation against damp.

Adhesive

The insulation is fixed to the substrate using the EWI-225 Premium Basecoat. This is the strongest basecoat-adhesive in the EWI Pro catalogue, offering a long-lasting and secure adhesion. The adhesive is applied to the back of the insulation boards which are then secured to the wall.

Mineral Wool Insulation

Mineral Wool insulation easily upgrades the thermal properties of the building, ensuring a reduction in thermal transfer and class A1 fire resistance. Mineral Wool is vapour permeable and also offers acoustic insulating capabilities.

Mechanical Fixings

Mechanical fixings are used as a secondary method of securing the insulation to the substrate. Metal fixings should be used for Mineral Wool insulation.

Fibreglass Mesh

Fibreglass reinforcing mesh is embedded within the basecoat adhesive to enhance the tensile strength and crack resistance of the render system.

Basecoat

The basecoat reinforcement layer is applied to the insulation and consists of the EWI-225 Premium Basecoat. The reinforcement layer creates a smooth surface before applying the render.

Render Primer

The render primer is painted onto the reinforcement layer to ensure that the render adheres to the basecoat, and to contribute towards a durable render finish.

Decorative Finish

EWI Pro offer a range of coloured renders, all of which can enhance the external appearance of the property. Each render provides a long-lasting, crack-proof finish and come with a range of advantages for the building structure.

  • Substrate Preparation
  • Starter Track & Clip-on Profile
  • Adhesive
  • Mineral Wool Insulation
  • Mechanical Fixings
  • Fibreglass Mesh
  • Basecoat
  • Render Primer
  • Decorative Finish
Brick/Block Mineral Wool System
Rockwool insulation features as part of our classic Mineral Wool system for standard brick and blockwork. Due to its excellent fire resistance, breathability and insulating capabilities, Mineral Wool insulation systems are a premium choice for all-round performance. Fix the insulation using our Premium Basecoat adhesive and Metal Pin Fixings for a secure structure, then finish the system with a breathable, decorative thin coat render. When installed onto a solid wall, 110mm of Mineral Wool can achieve a U-value of 0.30(W/m2k). The open-pore structure of stone wool means that it is highly efficient against noise pollution, as well as being an excellent insulator. This is the ideal material for a system that ticks every box.
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