Project name Old Dover Road Project summary Whole house retrofit and formation of new habitable roof structure

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Dominic Lynch
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formation of new habitable roof structure Project Description Projected

Project location Canterbury, Kent, England Energy target AECB Silver Build

Detached Existing external wall construction Masonry Cavity Existing

1 Project name Old Dover Road Project summary Whole house retrofit and formation of new habitable roof structure Project Description Projected build start date Projected date of occupation Project stage Occupied Project location Canterbury, Kent, England Energy target AECB Silver Build type Refurbishment Building sector Private Residential Property type Detached Existing external wall construction Masonry Cavity Existing external wall additional information Existing party wall construction Floor area m² Floor area calculation method PHPP Low Energy Buildings Page 1

2 Project team Organisation Project lead Client Architect Mechanical & electrical consultant(s) Energy consultant(s) Structural engineer Quantity surveyor Other consultant Contractor Conker Conservation Ltd Paul Mallion Joy and Nick Shaw Conker Conservation Ltd Built Environment Technology Ltd Conker Conservation Ltd SCGreen Ltd Richard Walder Carpentry Developments Ltd Design strategies Planned occupancy Space heating strategy Water heating strategy Fuel strategy Renewable energy generation 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 Other information (constraints or opportunities influencing project design or outcomes) Energy use Fuel use by type (kwh/yr) Fuel previous forecast measured Electri c 74 Gas 172 Oil LPG Wood Low Energy Buildings Page 2

3 Primary energy requirement & CO2 emissions Annual CO2 emissions (kg CO2/m².yr) Primary energy requirement (kwh/m².yr) previous forecast measured Renewable energy (kwh/yr) Renewables technology forecast measured - - Energy consumed by generation Airtightness ( 50 Pascals ) Date of test Test result Pre-development airtightness 27 Apr Final airtightness 01 Sep Annual space heat demand ( kwh/m².yr ) Space heat demand Pre-development forecast measured Whole house energy calculation method Other energy calculation method Predicted heating load Other energy target(s) PHPP 16 W/m² (demand) Building services Occupancy Space heating Hot water Ventilation Controls Cooking Lighting Appliances Renewables 2 persons plus guests Condensing gas boiler firing underfloor heating to ground floor, and heated towel rails to wet rooms. Radiators to new bedroom and study in new roof. Hot water cylinder with rigid foam insulation and metal jacket. Vent Axia Sentinel Kinetic Plus B with inline frost unit, rigid PVC ductwork and attenuators. 7 day programmer and thermostats to each area with underfloor heating. LED downlight Low Energy Buildings Page 3

4 Strategy for minimising thermal bridges Insulated cornice used in rooms where existing roof retained. To perimeters of whole house external XPS insulation taken down from DPC to top of foundations. Building construction Storeys 2 Volume 477m³ Thermal fabric area 53167m² Roof description Roof U-value Walls description Walls U-value Party walls description Party walls U-value Floor description Floor U-value Glazed doors description Glazed doors U-value Opaque doors description Opaque doors U-value Windows description Windows U-value Windows energy transmittance (G-value) Windows light transmittance Rooflights description I joists 300mm deep fully insulated with recycled denim, overlaid with 52mm dense wood fibre boards. underlined with 11mm OSB. 0.13W/m² K Existing block/block cavity walls with original 50mm injected mineral wool insulation, topped up and replaced where missing. Upgraded with 150mm graphite EPS external insulation system with acrylic render system. 0.15W/m² K Original floor of 150mm concrete slab with 50mm EPS insulation under screed. Upgraded with 50mm PIR foil faced insulation, and a dry screed/underfloor heating board. 0.27W/m² K Timber aluminium composite triple glazed 0.87W/m² K uninstalled Insulated timber panels 0.90W/m² K uninstalled Timber aluminium composite triple glazed, outward opening with aluminium cills 0.87W/m² K uninstalled 0.53% Rooflights light transmittance 0.44% Rooflights U-value Triple glazed units in timber frame with insulated external aluminium cladding, and aluminium external solar blackout blinds 0.92W/m² K uninstalled Low Energy Buildings Page 4

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Project Description. Projected build start date 23 May 2016 Projected date of occupation 27 Feb 2017

Project Description. Projected build start date 23 May 2016 Projected date of occupation 27 Feb 2017 http://lowenergybuildings.org.uk Project name Loudon Buildings, Godinton Estate Project summary Conversion of a modern concrete framed straw barn into low energy 4 bedroom house, approved under Class Q