Dryvit Expanded Polystyrene (Grey)

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Dryvit Low Lambda (LL) expanded polystyrene (EPS) is manufactured to the requirements of BS EN 13163 from pre-foamed beads of polystyrene. These are fused together under pressure in a steam-heated mould to produce a lightweight cellular plastic with an enhanced thermal insulating performance to that of standard EPS (white). It is available as a Dryvit Square Edge board for use in Dryvit Outsulation and Drysulation direct fix External Wall Insulation (EWI) Systems, the Fedderlite Panel System or as Dryvit Grooved EPS board for use with the Outsulation Rail System.


Dryvit LL EPS is used to provide insulation to the external walls of new construction and refurbishment projects when used as an integral part of the Dryvit Outsulation, Drysulation and Fedderlite range of External Wall Insulation systems.

Refer to Application Instructions and the product Safety Data Sheet.

  • Lightweight - Reduced imposed structural loads
  • Thermally efficient - Excellent insulating properties
  • Easy to work with - Can be readily shaped and formed
  • BRE Green Guide rating A+ - Low environmental impact over whole product life cycle
  • Contains fire retardant - Reduced rate of flame spread
Dryvit Expanded Polystyrene (Grey) Technical Data Sheet (en-GB).pdf TDS
Dryvit Expanded Polystyrene Safety Data Sheet (en-GB).pdf Safety Data Sheets
Dryvit Expanded Polystyrene (Grey) Technical Data Sheet (en-GB).pdf TDS