Thermal image of window/wall junction thermal bridge

The Annexe, West Dorset

project designed by Theo Green Designs Ltd

Services supplied:

  • full SAP assessment and building regulations compliance report, including advice on improvements to make to achieve building regulations approval.
  • advice on appropriate sustainable materials to use
  • U-value calculations of different construction options, with indicative heat-loss calculations
  • discussing the impact on energy efficiency and EPC rating of different windows and levels of air tightness
  • guidance on airtightness strategy – the property achieved a very good airtest result of 2.21 m3/h/m2 despite not aiming for the highest levels.
  • Final EPC rating: B (84)