The Old Foldyard, Chartham, Canterbury, Kent

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New detached house in a conservation using natural materials and finishes to blend in with Kent vernacular.
Images Graphs Figures Description Strategies Building

The Old Foldyard, Chartham, Canterbury, Kent : Project images

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CO2 emissionsPrimary energy requirement
Energy target
AECB Silver

Energy and fuel use

Fuel use by type
Primary energy requirement
CO2 emissions

Measured data from renewable generation is not yet available.

Fuel use

Electricity use - - -
Natural gas use- - -
Oil use- - -
LPG use- - -
Wood use- - -
Other Fuel - - -
Primary energy requirement - - -
Annual CO₂ emissions - - -
Annual space heat demand - - -

Renewable energy

Electricity generationForecastMeasured
Renewables Technology--
Other Renewables Tech--
Electricity consumed by generation --
Primary energy requirement
offset by renewable generation
Annual CO₂ emissions
offset by renewable generation

Calculation and targets

Whole house energy calculation method
Other whole house calculation method-
Energy target AECB Silver
Other energy targets-
Forecast heating load -


Pre-development air permeability test--
Final air permeability test--

Project description

Start date04 July 2010
Occupation date01 September 2012
Location Canterbury Kent  England
Build typeNew build
Building sectorPrivate Residential
Property typeDetached
Construction typeSoftwood frame
Other construction typeGround floor walls cavity construction
Party wall construction
Floor area 250
Floor area calculation method Treated Floor Area (PHPP)
Building certification

Project Team

OrganisationConker Conservation Ltd
Project lead personPaul Mallion
Landlord or ClientT Perry Rutt
ArchitectT Perry Rutt
Mechanical & electrical consultant Green Building Store
Energy consultantConker Conservation Ltd
Structural engineerJohn McAnally
Quantity surveyor
ConsultantConker Conservation Ltd
ContractorPeriod Restorations Ltd

Design strategies

Planned occupancy
Space heating strategy
Water heating strategy
Fuel strategy
Renewable energy strategy
Passive Solar strategy
Space cooling strategy
Daylighting strategy
Ventilation strategy
Airtightness strategy
Strategy for minimising thermal bridges
Modelling strategy
Insulation strategy
Other relevant retrofit strategies
Contextual information

Building services

Occupancy5 person family
Space heating
Hot water
VentilationPaul Novus 300 system complete from Green Building Store, with silencers, filter box, frost protection coil.
Renewable energy generation system
Strategy for minimising thermal bridgesAll details drawn at large scale and analysed. Foamglas Perinsul used at load bearing junctions under masonry

Building construction

Storeys 2
Volume 1084
Thermal fabric area 841
Roof description Pitched roof using 400mm I joists filled with cellulose fibre insulation with OSB sheathing board enclosing both sides.
Roof U-value 0.09 W/m² K
Walls description Cavity walls to ground floor, 300mm mineral wool with Teplo ties, dense clockwork internally.First floor walls 300mm timber I joists fully filled with cellulose fibre, sheathed externally with 50mm wood fibre insulation and finished with timber cladding.
Walls U-value 0.10 W/m² K
Party walls description
Party walls U-value -
Floor description Suspended concrete slab and ground bearing slab, both with 250mm EPS insulation with 75mm screed over.
Floor U-value 0.13 W/m² K
Glazed doors description Internorm triple glazed timber aluminium composite
Glazed doors U-value 0.87 W/m² K uninstalled
Opaque doors description
Opaque doors U-value - -
Windows description Internorm triple glazed timber aluminium composite
Windows U-value 0.87 W/m² K -
Windows energy transmittance (G-value) 52 %
Windows light transmittance -
Rooflights description Fakro FTT triple glazed units with Thermo flashings
Rooflights light transmittance 55%
Rooflights U-value 0.94 W/m² K