Admirals Hard
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as PDF FINALIST of the UK Passivhaus Awards 2015 - Situated on the Stonehouse peninsula, by the banks of the River Tamar, Number 3 Admirals Hard was built in the 1950s and comprises a shop on the ground floor and WARMs office, originally a flat, on the first floor. The first floor is EnerPHit certified. The extensive retrofit works included external wall insulation, cavity wall fill, floor insulation (between the office and the shop), roof insulation at rafter level, high levels of air tightness and high-performance triple-glazed windows, as well as a self-balancing MVHR system.
Admirals Hard : Project images
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Energy and fuel use
Measured data from renewable generation is not yet available.
Fuel use
| Pre-development | Forecast | Measured | |
| Electricity use | - | - | - |
|---|---|---|---|
| Natural gas use | - | - | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | - | - | - |
|---|---|---|---|
| Annual CO₂ emissions | - | - | - |
| Annual space heat demand | - | - | - |
Renewable energy
| Electricity generation | Forecast | Measured |
|---|---|---|
| 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 | EnerPHit |
| Other energy targets | - |
| Forecast heating load | - |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | - |
|---|---|---|
| Final air permeability test | - | - |
Project description
| Stage | Occupied |
|---|---|
| Start date | |
| Occupation date | |
| Location | Plymouth Devon England |
| Build type | Refurbishment |
| Building sector | Commercial |
| Property type | Detached |
| Construction type | Masonry Cavity |
| Other construction type | Filled cavity with external insulation |
| Party wall construction | |
| Floor area | 80.9 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |  Passivhaus certified building |
Project Team
| Organisation | WARM: Low Energy Building Practice |
|---|---|
| Project lead person | WARM: Low Energy Building Practice |
| Landlord or Client | WARM: Low Energy Building Practice |
| Architect | WARM: Low Energy Building Practice |
| Mechanical & electrical consultant | |
| Energy consultant | |
| Structural engineer | |
| Quantity surveyor | |
| Consultant | |
| Contractor | WARM: Low Energy Building Practice |
Design strategies
| Planned occupancy | |
|---|---|
| Space heating strategy | Original Gas combi boiler retained |
| Water heating strategy | Original Gas combi boiler retained |
| 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
| Occupancy | 10 Occupants |
|---|---|
| Space heating | |
| Hot water | |
| Ventilation | |
| Controls | |
| Cooking | |
| Lighting | |
| Appliances | |
| Renewable energy generation system | |
| Strategy for minimising thermal bridges |
Building construction
| Storeys | |
|---|---|
| Volume | - |
| Thermal fabric area | - |
| Roof description | Timber I-beams on air barrier on deck on existing rafters, fully filled with mineral wool |
| Roof U-value | 0.14 W/m² K |
| Walls description | Block cavity wall, phenolic foam to cavity, graphite EPS to exterior, render system |
| Walls U-value | 0.13 W/m² K |
| Party walls description | |
| Party walls U-value | - |
| Floor description | Intermediate floor void filled with cellulose. Floor re-laid with air barrier and floating floor. Ground floor lobby area - phenolic foam boards |
| Floor U-value | 0.20 W/m² K |
| Glazed doors description | Rationel Aura Plus |
| Glazed doors U-value | 0.88 W/m² K uninstalled |
| Opaque doors description | |
| Opaque doors U-value | 0.88 W/m² K uninstalled |
| Windows description | Rationel Aura Plus |
| Windows U-value | - - |
| Windows energy transmittance (G-value) | 51 % |
| Windows light transmittance | - |
| Rooflights description | |
| Rooflights light transmittance | - |
| Rooflights U-value | - |