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Project

Sustainable Insulation Replacement Across Multi-Site Residential Developments

  • Project
    Multi-Site Residential Developments
  • Location
    London
  • Client
    Telford Homes

Project overview

Telford Homes (Living) needed a reliable way to assess the sustainability and safety impacts of replacing flammable insulation materials across multiple developments.

Drivers behind this needed to:

  • Enhance fire safety for residents by removing combustible insulation products.
  • Ensure environmental performance remains unaffected or improves.
  • Reassure stakeholders and residents that these critical safety upgrades wouldn’t compromise energy efficiency or increase running costs.

 

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Project Scope and Challenges

The project involved evaluating the impact of insulation replacement across a portfolio of residential developments. Energist was initially contracted for one site (Warton Road), with the potential for expanded involvement.

Challenges and Opportunities:

  • Need for accurate modelling of energy performance pre and post-insulation change.
  • Requirement for clear, data-driven reassurance to property owners and residents.
  • Opportunity to influence long-term sustainability standards across the client’s full portfolio.
  • Balancing safety upgrades with strict energy compliance requirements.
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👈 Take a look at what was delivered and the outcomes achieved

Energist's Deliverables

Energist delivered a full suite of energy performance assessments, including:

  • SAP-based modelling using representative unit samples.
  • Comparative U-value analysis pre and post-insulation changes.
  • EPC and Environmental Impact (EI) rating studies across multiple developments.
  • Clear reporting tailored to inform both technical and non-technical stakeholders.
  • Scalable methodology adopted by Telford Homes for future developments.
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Results and Outcomes

  • Maintained or improved EPC scores across all assessed developments.
  • Improved fire safety through the use of mineral wool and Rockwool insulation.
  • Zero disruption to energy efficiency or resident heating costs.
  • Telford Homes has committed to adopting this model for all current and future insulation upgrades.
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"The Energist team have met the high expectations we set them in delivering technical assessments over a number of projects in a relatively short period of time. Their approach was collaborative and highly responsive to our brief to produce a technically detailed report in a user-friendly format for non-technical stakeholder needs. Where possible the reports will demonstrate to residents that the remediation work being undertaken will have no detrimental effect on the energy performance of their property or building." We look forward to a continued partnership.
Graeme Mitchell - Remediation Programme Associate Director