St Barnabas St EnerPHit
- Client: Grosvenor
- Architect: GRA Architecture Interiors
- PassivHaus Designer & Carbon Consultant: Sturgis Carbon Profiling
- Structural Engineer: Hurst Pierce + Malcolm
- M&E Engineer: Edward Pearce
- Contractor: Grangewood
- Location: Belgravia, London
- Project Duration: October 2014 - October 2015
- Building Standards: EnerPHit (PassivHaus Retro)
2 more Grosvenor Estate’s EnerPHit projects in the heart of central London.
Two terraced houses that underwent radical ‘fabric first’ strategy which included:
- Super-efficient breathable aerogel internal insulation that achieved low u-values on existing historic facade
- Highly insulated new timber extension designed to have low embodied carbon emissions;
- External insulation to rear facade
- No cold bridges and no thermal bypass, which were identified and isolated at design stage using 2D and 3D cold bridge modeling tools
- Intelligent breathable membrane to achieve exceptionally low airtightness
- Triple glazed mock sash windows in front façade
- Generally high recycled content materials and excellent workmanship
- Low and Zero Carbon (LZC) Technologies included PV panels and Mechanical Heat Recovery Ventilation (MHRV)
SCP was engaged as certified PassivHaus designer to coordinate and monitor the works on site to achieve EnerPHit certification.
SCP used PHPP (Passive House Planning Package) to reduce the heating need of the dwellings by an estimated 90%. Also, run PassivHaus principles and airtightness hand-on training workshops for the client, main contractor and all design teams.