Great Yarmouth

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Two identical 137 square metre buildings on separate sites each containing two semi-detached properties. They were built to a full Passivhaus standard using the Beattie Passive timber frame build system.
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Great Yarmouth : Project images

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CO2 emissionsPrimary energy requirement
Energy target
PassivHaus

Energy and fuel use

Fuel use by type
Primary energy requirement
CO2 emissions
Renewables

Measured data from renewable generation is not yet available.

Fuel use

 Pre-developmentForecastMeasured
Electricity use - - -
Natural gas use- - -
Oil use- - -
LPG use- - -
Wood use- - -
Other Fuel - - -
 Pre-developmentForecastMeasured
Primary energy requirement - - -
Annual CO₂ emissions - - -
Annual space heat demand - 15 kWh/m².yr -

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 PHPP
Other whole house calculation method-
Energy target PassivHaus
Other energy targets-
Forecast heating load 9 W/m² demand

Airtightness

 DateResult
Pre-development air permeability test--
Final air permeability test11 July 20140.57m³/m².hr @ 50 Pascals

Project description

StageOccupied
Start date17 February 2014
Occupation date
Location Great Yarmouth Norfolk  England
Build typeNew build
Building sectorPublic Residential
Property typeSemi-Detached
Construction typeOak frame
Other construction type
Party wall construction253mm timber stud casements with EcoBead insulation
Floor area 137
Floor area calculation method Treated Floor Area (PHPP)
Building certification  Passivhaus certified building Passivhaus certified building

Project Team

OrganisationGreat Yarmouth Development Company
Project lead person
Landlord or Client
ArchitectNPS Property Consultants
Mechanical & electrical consultant Total Home Environment
Energy consultantEncraft
Structural engineerCanham Consulting
Quantity surveyor
Consultant
ContractorBeattie Passive

Design strategies

Planned occupancyTwo occupants per semi-detached property
Space heating strategyHeating from condensing gas boiler supplying bathroom towel radiators.
Water heating strategyFrom heating system
Fuel strategyMains gas. Mains electricity
Renewable energy strategy
Passive Solar strategySolar gains maximised using PHPP
Space cooling strategyNatural ventilation for most of the cooling season. Modelled using PHPP to ensure frequency of overheating of the building is low.
Daylighting strategy
Ventilation strategyMVHR installed
Airtightness strategy Beattie Passive build system provides airtightness layer integrated into build system
Strategy for minimising thermal bridges Aimed for thermal bridge free design
Modelling strategyWhole building was modelled in PHPP to ensure Passivhaus standards compliance
Insulation strategyBeattie Passive build system on a timber frame filled all cavities with a layer of Platinum Ecobead insulation
Other relevant retrofit strategies
Contextual information

Building services

OccupancyFour people
Space heatingGreenstar gas condensing boiler with 89% efficiency supplying bathroom towel radiators.
Hot waterFrom heating system
VentilationInstalled MVHR Genvex GES Energy Opt100 with 81% efficiency
Controls
Cooking
Lighting
Appliances
Renewable energy generation system
Strategy for minimising thermal bridgesThermal bridge free design with Beattie Passive build system

Building construction

Storeys 2
Volume 250.6
Thermal fabric area -
Roof description Panel vent boarding 12mm, Kingspan K5 thermaboard 130mm, Versapanel 15mm, wide timber stud casements with Ecobead 220mm, Versapanel 15mm, Installation level 25mm, plasterboard 13mm
Roof U-value 0.08 W/m² K
Walls description Kingspan K5 thermaboard 60mm, Versapanel 15mm, wide timber stud casements with ecobead 220mm, Versapanel 15mm, Installation level 25mm, Plasterboard 13mm
Walls U-value 0.11 W/m² K
Party walls description
Party walls U-value -
Floor description Eco band carrier lower 100mm, Eco band carrier upper 50mm, Eco slab 50mm, Eco band equal concrete/insulation 100mm, Eco band equal concrete/insulation 194mm, floor boarding 18mm, Kingspan K3 30mm, Chipboard floor 22mm
Floor U-value 0.09 W/m² K
Glazed doors description Munster uPVC Passiv Futureproof
Glazed doors U-value 0.79 W/m² K uninstalled
Opaque doors description
Opaque doors U-value - uninstalled
Windows description Munster Passiv Futureproof. Triple Glazed. 4-20-4-20-4 mm with 90% Argon cavity fill and low-e coating internal and central panes
Windows U-value - -
Windows energy transmittance (G-value) 61 %
Windows light transmittance -
Rooflights description
Rooflights light transmittance -
Rooflights U-value -

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