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The challenge The Welsh Assembly’s Arbed* scheme was launched to upgrade the energy efficiency of existing housing stock in some of the most deprived parts of Wales. Many of these properties are hard to treat as their solid external walls make them unsuitable for more commonly prescribed thermal solutions such as cavity wall insulation. Arbed finds new ways to boost the thermal insulation of the properties through installing external wall insulation while at the same time providing an economic boost to these areas through the creation of jobs and provision of vocational training. For the residents of the Ty Coch social housing scheme on the outskirts of Caerphilly, the Arbed project has been a win-win solution from the outset.

Main developer

United Welsh Housing Association, Arbed

Contractors

Instaat Projects Ltd

Fact file

  • 284 single skin houses
  • Over 8000 m2 of 90 mm, breathable, insulation slabs installed

 The challenge

The Welsh Assembly's Arbed* scheme was launched to upgrade the energy efficiency of existing housing stock in some of the most deprived parts of Wales. Many of these properties are hard to treat as their solid external walls make them unsuitable for more commonly prescribed thermal solutions such as cavity wall insulation. Arbed finds new ways to boost the thermal insulation of the properties through installing external wall insulation while at the same time providing an economic boost to these areas through the creation of jobs and provision of vocational training.

For the residents of the Ty Coch social housing scheme on the outskirts of Caerphilly, the Arbed project has been a win-win solution from the outset.

 ROCKWOOL® solution

The project incorporated 284 houses, each with single skin, solid external walls. Because the walls had no internal cavity ROCKWOOL® used a whole-house approach to energy efficiency by supplying its ROCKSHIELD® external insulation system. Over 8000 m2 of 90 mm, breathable, insulation slabs were installed. The slabs were then finished with a two-coat render system.

 The ROCKSHIELD® insulation system was installed by ROCKWOOL® approved contractors on a street-by-street basis to help minimise costs through economies of scale. One of the contractors was local firm Instaat Projects Ltd whose employees were fully trained by ROCKWOOL® specifically to enable them to participate in the project.

 To help minimise the amount of waste sent to landfill, ROCKWOOL® also provided a recycling service, collecting insulation off-cuts and returning them to then Bridgend factory for recycling.

 ROCKWOOL® expertise was not confined to insulation expertise on this project; the company was also instrumental in assisting United Welsh Housing Association to secure additional funding. Phase one of the project was part-funded via the Arbed programme. Using experience gained on similar projects, ROCKWOOL® were able to provide a critical link between the housing provider and the UK government's Community Energy Saving Programme (CESP) to enable United Welsh Housing Association to secure extra funding to enable the Ty Coch Estate makeover to be fully implemented.

 Benefits

  • Residents have warmer, more comfortable homes
  • Heating bills are minimised
  • Render finish gives each property a bright, fresh appearance
  • Local joinery business are now fully trained installers

"From the start of this project we have been impressed with the support and guidance provided by ROCKWOOL®. Not only have they provided a secure and suitable insulation system, but have given us valuable support throughout the entire process, from training the installers to guidance on additional funding. We look forward to working with ROCKWOOL® on future schemes."

Richard Mann, Director of Development at United Welsh Housing Association

 * The Arbed programme is Wales' Strategic Energy Performance Investment Programme. The Arbed programme supports the One Wales ambitions to reduce climate change, eradicate fuel poverty and boost economic development and regeneration in Wales (Source: Welsh Assembly Government).

Click to Download Ty Coch Estate Case Study