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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