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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 EPS System image

Substrate Preparation

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

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 either the EWI-210 EPS Adhesive, EWI-220 EPS Basecoat or EWI-225 Premium Basecoat. Due to the fact that the EWI-220 can be used as both a basecoat and an adhesive, it is the ideal choice for use with EPS insulation, 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.

EPS Insulation

EPS insulation easily upgrades the thermal properties of the building, ensuring a reduction in thermal transfer. EPS is cost effective and is an ideal solution for brick substrates.

Mechanical Fixings

Mechanical fixings are used as a secondary method of securing the insulation to the substrate. Plastic fixings should be used for EPS insulation.

Basecoat

The basecoat reinforcement layer is applied to the surface of the insulation boards and consists of the EWI-220 Adhesive or the EWI-225 Premium Adhesive. The reinforcement layer creates a smooth surface before applying the render.

Fibreglass Mesh

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

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
  • EPS Insulation
  • Mechanical Fixings
  • Basecoat
  • Fibreglass Mesh
  • Render Primer
  • Decorative Finish
Brick/Block EPS System
Our standard classic system is comprised of EPS insulation on a brick/block substrate; this system is cost-effective, easy to install and suitable for a wide range of properties. Using our EPS Adhesives and Plastic Pin Fixings achieves an advanced insulation system with minimised thermal bridging and a prolonged lifespan. A choice of decorative thin coat renders are available to seal the system and achieve an aesthetically pleasing finish. When installed on a solid brick wall, 90mm of EPS can achieve a U-value of 0.30(W/m2k). This brings the building fabric in line with modern-day efficiency standards, effectively reducing energy bills and improving the thermal comfort of the property. Not only does the system create a more comfortable internal environment, but it also hugely updates the exterior look of the building, creating a fresh, modern finish.
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