Riverside HA - Semi-Rural 2 Bed Semi-Detached House
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as PDF Constructed in 1950s, the property is typical end of terrace ex-council house. It has a southerly aspect with a lot of its roof facing south. Insulation will be by internal nanopore insulation. Heating is by EnviroPod, an MCS approved heat pump and thermal store package
Retrofit for the future ZA448M
Riverside HA - Semi-Rural 2 Bed Semi-Detached House : 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 | 13060 kWh/yr | 2306 kWh/yr | - |
|---|---|---|---|
| Natural gas use | - | - | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | 507 kWh/m².yr | 90 kWh/m².yr | - |
|---|---|---|---|
| Annual CO₂ emissions | 120 kg CO₂/m².yr | 21 kg CO₂/m².yr | - |
| Annual space heat demand | - | 23.9 kWh/m².yr | - |
Renewable energy
| Electricity generation | Forecast | Measured |
|---|---|---|
| Solar Photovoltaic | 667 kWh/yr | - |
| Other Renewables Tech | - | - |
| Electricity consumed by generation | - | - |
| Primary energy requirement offset by renewable generation | 64 kWh/m².yr | - |
| Annual CO₂ emissions offset by renewable generation | 15 kg CO₂/m².yr | - |
Calculation and targets
| Whole house energy calculation method | SAP |
|---|---|
| Other whole house calculation method | - |
| Energy target | Retrofit for the Future |
| Other energy targets | We aim to reduce energy consumption further than predicted by the use of additional technologies that cannot be modelled eg 1. The use of voltage regulators predicted to give 15-20% savngs on electricity 2. The use of energy readouts within the property |
| Forecast heating load | - |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | 5.88m³/m².hr @ 50 Pascals |
|---|---|---|
| Final air permeability test | - | - |
Project description
| Stage | Under construction |
|---|---|
| Start date | 05 July 2010 |
| Occupation date | 30 September 2010 |
| Location | Longtown Cumbria England |
| Build type | Refurbishment |
| Building sector | Public Residential |
| Property type | End Terrace |
| Construction type | Masonry Cavity |
| Other construction type | From inside - 4" brick, 2 1/2" uninsulated cavit |
| Party wall construction | Approx uninsulated 250mm masonry cavity |
| Floor area | 64.4 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |
Project Team
| Organisation | Roland Hill Ltd |
|---|---|
| Project lead person | Roland Hill Ltd |
| Landlord or Client | Riverside Housing Association |
| Architect | |
| Mechanical & electrical consultant | SD Engineering Ltd |
| Energy consultant | EnviroHomes Ltd |
| Structural engineer | AL Daines & Partners |
| Quantity surveyor | |
| Consultant | Northumbria / Oxford Brooke Universities |
| Contractor | Roland Hill Ltd |
Design strategies
| Planned occupancy | Single retired person, occupying the house for the majority of the time |
|---|---|
| Space heating strategy | Heating from air source heat pump in EnviroPod feeding radiators. Heat recovered from exhausted air from property |
| Water heating strategy | Solar water heating to suppliment EnviroPod air source heat pump. No back up resitance heating |
| Fuel strategy | Mains electricity utilising off peak tariff for space heating via EnviroPod |
| Renewable energy strategy | 4m2 of solar thermal panels + 1.0 kWp solar photovoltaic panels |
| Passive Solar strategy | Property within 10 degress of south. Plan to keep the larger southerly facing windows |
| Space cooling strategy | |
| Daylighting strategy | To maintain the current daylight factor of all the rooms within the building. This means all rooms in the band of 2-5% daylight factor |
| Ventilation strategy | Windows to remain opening for summer ventilation. Winter ventilation by MVHR. |
| Airtightness strategy | Use of airtightness membranes and components within the roof and walls. In addition to internal insulation being gypsum plaster skimmed. |
| Strategy for minimising thermal bridges | Use of continuous insulation throughout the property. Application of best practice for tackling thermal bridging eg by Energy Saving Trust - Robust Details etc. Geometric thermal bridges kept to a minimum. |
| Modelling strategy | Use of accredited SAP2005 software with whole house SAP extension sheet version 1.6 from TSB web site. |
| Insulation strategy | Application of internal insulation to walls using nanopore technology - target U-value 0.19 W/m2/K Replacement of solid floor with insulated solid floor using vacuum insulation panels - target U-value 0.17 W/m2K Remove existing poor mineral fibre and replace with EnergyFlo Dynamic insulation - target U-value 0.1 W/m2K (however this system can easily attain 0.05 W/m2K with no physical change to components. |
| Other relevant retrofit strategies | We are wanting to look at the use of off peak electricity and the use of efficient thermal stores for heat. This will use the EnviroPod both as heat generator and store. This will reduce heating bills further than using a conventional heat pump which is benficial to the dwelling occupiers. |
| Contextual information | The dwelling is typical of its time. It is located in a town which is completely off gas. In this property electricity is the heating source. This leads to high potential for fuel poverty and difficulties in heating the whole house properly. |
Building services
| Occupancy | NULL |
|---|---|
| Space heating | NULL |
| Hot water | NULL |
| Ventilation | NULL |
| Controls | NULL |
| Cooking | NULL |
| Lighting | NULL |
| Appliances | NULL |
| Renewable energy generation system | NULL |
| Strategy for minimising thermal bridges | NULL |
Building construction
| Storeys | |
|---|---|
| Volume | - |
| Thermal fabric area | - |
| Roof description | NULL |
| Roof U-value | 0.00 W/m² K |
| Walls description | NULL |
| Walls U-value | 0.00 W/m² K |
| Party walls description | NULL |
| Party walls U-value | 0.00 W/m² K |
| Floor description | NULL |
| Floor U-value | 0.00 W/m² K |
| Glazed doors description | NULL |
| Glazed doors U-value | 0.00 W/m² K - |
| Opaque doors description | NULL |
| Opaque doors U-value | 0.00 W/m² K - |
| Windows description | NULL |
| Windows U-value | 0.00 W/m² K - |
| Windows energy transmittance (G-value) | - |
| Windows light transmittance | - |
| Rooflights description | NULL |
| Rooflights light transmittance | - |
| Rooflights U-value | 0.00 W/m² K |