DashAgg Supa

The DashAgg Supa External Wall Insulation (EWI) system from Alumasc Facades comprises the high performance Alumasc Supa phenolic insulation board, the polymer-modified Alumasc Dashing Render (MR S7) and the durable DashAgg stone dash finish. The DashAgg Supa system is ideally suited to refurbishment projects due to (a) the thermal insulation properties of the Alumasc Supa phenolic insulation board and the associated lower thickness of the EWI system and (b) the low maintenance requirements associated with the robust, hard-wearing DashAgg stone dash finish.

This BBA-approved system comprises the following components:

  • DashAgg stone dash
  • Alumasc Dashing Render (MR S7)
  • MR Scrim Adhesive
  • Alumasc Scrim Reinforcement
  • Alumasc insulation fixing
  • Alumasc Supa phenolic insulation
  • Alumasc Bedding Adhesive
  • Substrate

Key Features

The DashAgg Supa system combines the most thermally-efficient insulation board – Alumasc Supa phenolic insulation – with the polymer-modified Alumasc Dashing Render (MR S7). The MR S7 formulation was developed by Alumasc specifically for application onto insulation and have a proven track record stretching back over 20 years. A range of stone dash colours – applied over the coloured Alumasc Dashing Render – are available to provide the building with a clean and modern appearance.

Key Performance Criteria:

  • Fire performance: Class 0 spread of flame
  • Thermal performance: Typical U Values are:
    • 60 mm Supa insulation ~ 0.28 – 0.30 W/m2K
    • 90 mm Supa insulation ~ 0.20 – 0.21 W/m2K


  • BBA Certificate 93/2914 PS3


  • The standard range of base and accent stone colours is:
    • White base with choice of Polar White, Black & White or Red & White accent
    • Cream base with choice of Champagne, Derbyshire Spar or Ashton Cream accent
  • Other colours available upon request
  • Alumasc Dashing Renders are also supplied in a range of colours, including white, cream, and grey.


  • Masonry substrates
  • New build or refurbishment projects
  • Low- and high-rise properties in accordance with Alumasc’s High Rise Policy
  • Suitable for use above 18 m without the need for additional fire breaks.

Contact us

Request a visit, book a seminar online, ask our technical team, request a quote or contact customer service.


System approvals

BBA Approved – Certificate 93/2914 PS3
NHBC Approved

Performance testing

MOAT No 22: 1998 The Assessment of EWI Systems for Walls

Fire performance

Class 0 surface spread of flame
Approved for use in constructions with height greater than 18 m (i.e. high-rise) in compliance with BR135


> 30 years

Impact resistance

Adequate resistance to impact and abrasion according to BS 8200: 1995

BBA Certificate (.pdf)

DashAgg Supa (Phenolic) BBA Certificate

CAD Download (.pdf)

DashAgg Supa CAD

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