Benefits of retrofitting external wall insulation

Green Homes Grant

Although the details of the Green Homes Grant and forthcoming £50m pilot to decarbonize social housing have not yet been released, you may be looking for an affordable and locally sourced retrofitted external wall insulation.

ProRend EIFS (External Insulation Finishing System) is a complete solution for renovating properties, both residential and community buildings. ProRend EIFS adds a new, breathable outer envelope to the building, comprising of modern external insulation under a durable and decorative render finish.

Improving energy efficiency

If a building has solid walls, is poorly insulated, costs too much to heat or suffers from damp, then retrofitting external insulation can solve the problem. The Energy Saving Trust reports that external wall insulation can reduce annual heating bills by an average of £260 for a gas-heated semi-detached home.

ProRend EIFS gives compliance with Building Regulations Part L- Conservation of Fuel and Power, achieving the current thermal conductivity requirements for walls. It also provides an attractive façade for a property and protects it against the elements.

External insulation retrofit project

This renovation project shows retrofit external wall insulation to an existing cottage.

Retrofitted ProRend EIFS rendered wall insulation improved the appearance and thermal efficiency of this home, ensuring low energy running costs for the future.

The render finish is ProRend Colourtex render, that can be custom coloured to match existing buildings, or choose from our standard range.


Benefits of ProRend EIFS

  • EIFS can be applied retrospectively with homeowners in place
  • Does not reduce the floor area of the property
  • Reduces heating bills
  • Reduces internal condensation
  • Gives a new finish to outer walls
  • Does not spread fire
  • Solid block insulation will not break up and release fibres
  • Seals draughts and cracks in brickwork
  • Prevents water coming in
  • Adds soundproofing
  • Render gives a durable protective finish
  • Contains biocides to prevent algae, so is easy to maintain
  • 10-year manufacturer’s guarantee

We can provide a quote to retrofit external insulation to your home, or support and supply long term projects to retrofit external insulation for housing associations. SAS also have a network of applicators we can recommend to install the insulation, contact us for further information.


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