CROYDON ROAD PASSIVHAUS PREMIUM
PHI Database ID 7902 https://passivehouse-database.org/index.php?lang=en#d_6959
Description:
Although this is a suburban house it has a roof terrace providing views to the mountains. It has a west frontage to a busy road which is screened by large trees but also has a north frontage to a quiet side street. The main glazing therefore is orientated towards the sun. A low heating and cooling demand of 9 kWhr/m2/annum allows sufficient pv panels on the limited roof space to achieve Passivhaus Premium even though some panels face south.
Construction is standard 90mm timber frame with glass wool insulation supplemented with foil faced PIR which is taped airtight to form the vapour membrane to walls, ceilings and floor. PIR is laid over the particleboard structural deck of the raised floor and them overlaid with the floor finishes. Window frames are Upvc triple glazed against road noise.
Thermal envelope
Exterior wall: Standard 90mm timber frame with glasswool between studs and 50mm PIR internally sealed as the airtight vapour membrane U 0.202 W/(m2K)
Floor: Suspended timber floor with 50mm PIR insulation and particleboard deck above. U-value 0.331 W/(m2K)
Roof: Standard timber trusses with glasswool insulation and 50mm PIR sealed as the airtight vapour membrane. U 0.115 W/(m2K)
Window Frames: Kommerling Upvc frames from Blue Sky Windows Uf 1.44 W/(m2K)
Glazing Triple glazing Ug-value 0.9 W/(m2K) g -value 0.47
Entrance door Kommerling Upvc door Ud 1.44 W/(m2K)
Mechanical systems
Ventilation Zhender, ComfoAir Q350
Heating installation No dedicated heating system other than reverse cycle heat pump air conditioning. Domestic hot water Reclaim Heat Pump split system
Rainwater harvesting.
Solar electricity (PHPremium)
Number of apartments / units: 1
Treated Floor Area according to PHPP: 144 m2
Construction type: timber construction
Year of construction: 2020
Other parties involved
Architecture: David Halford 5c Sustainable Building Design
Building services: David Halford 5c Sustainable Building Design
Building physics: HMPCC Leo Halford Molinaro
Certifier: Luc Plowman Detail Green
Statics: RMG
Craftsperson / parties involved: GLux Builders
PHPP values
Air tightness n50 = 0.5/h
Annual heating demand 9 kWh /(m2a ) calculated according to PHPP
Heating load 9 W/m2
PE demand (non-renewable Primary Energy) 59 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP
PER demand (renewable Primary Energy) 27 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP
Generation of renewable energy 153 kWh /(m2a ) based on the projected area