Shop EPS external wall insulation boards, with options for a range of external wall insulation (EWI) and render system applications. EPS stands for expanded polystyrene, a lightweight insulation material commonly used to improve the thermal performance of external walls when installed as part of a suitable insulation system

Our range includes white EPS and grey graphite-enhanced EPS insulation boards in a variety of thicknesses and grades. Whether you are sourcing materials for a new-build project, a property refurbishment or an external wall insulation upgrade, compare the available options to find boards suited to your project's insulation requirements.

White and Graphite EPS Insulation

White EPS boards are a widely used option for external wall insulation. Grey graphite EPS boards contain graphite particles designed to improve thermal performance compared with standard white EPS of equivalent thickness, subject to the specific product's declared thermal conductivity.

Choosing the correct board thickness and specification is important when working towards your required thermal performance. Always check the manufacturer's datasheet for thermal conductivity, declared performance, fire classification and approved applications.

EPS Boards for External Wall Insulation Systems

EPS insulation boards are commonly incorporated into compatible external wall insulation systems, where they are installed with the specified adhesive or mechanical fixings, reinforcement mesh, basecoat and render finish. Use boards approved for the intended system and follow the manufacturer's installation guidance.

When selecting EPS insulation, consider the existing wall construction, required thermal performance, board thickness, fixing method and proposed external finish. Check that the complete system is suitable for the building and complies with applicable UK building regulations and fire-safety requirements.

Order EPS Insulation Boards from us

Browse our EPS external wall insulation boards to compare available sizes, thicknesses and product specifications. We supply insulation and building materials to trade professionals, contractors and homeowners, with UK-wide delivery options.

Need help choosing the right product or ordering in larger quantities? Contact our team for product information and a quotation.