Single family house in Bacau
nZEB Example
Technology
Exterior wall
- mineral wool-Isover Profi Fassade (036) 20cm
- Non sanded,Cement Board – Betonpan
- Isover Forte (034) 15cm between timber studs
- OSB
- Vapour Barrier
- Tech Space- Isover Forte (034) 5cm
- Gypsum Plaster
- U-value = 0.091 W/(m2K)
Basement floor / floor slab
- floor slab 120 mm
- XPS (036) 250 mm
- PE Foil
- cement screed 80 mm
- parquet
- U-value = 0.12 W/(m2K)
Roof
- metal roof sheet
- wood cavity
- Transpir membrane
- Isover Forte (034) 20cm on the timber rafters
- Isover Forte (034) 20cm between timber rafters
- Vapour Barrier
- Tech Space-Isover Forte (034) 5cm
- Gypsum Plaster
- U-value = 0.088 W/(m2K)
Frame
- Rehau Geneo Phz, PVC, light grey 078 – 0.81
- Velux – GGU 008230, wood 1.18
- U w-value = 0.79 W/(m2K)
Glazing
- Triple glazing with two low-e coatings and Argon filling.
- Thermally separated spacer-Chromatech Ultra F, (0.038 W/mK)
- U g-value = 0.52 W/(m2K)
- g -value = 51 %
Entrance door
- U d-value = 1.35 W/(m2K)
Mechanical systems
Ventilation
- SABIANA ENY-SP-370 , 88%
- Ventilation system for supply and extract air with heat recovery
Heating installation
- NIBE F2040-8 air/water heat pump 7kW.
- Buffer storage.
- Underfloor heating.
Domestic hot water
- NIBE F2040-8 air/water heat pump 7kW.
- Buffer st
The house generates renewable energy through the 34 photovoltaic panels mounted on the building’s roof.
Building owner
Private owner
Building type
Project type
Country
Year of construction / major renovation
Construction: 2019
Renovation: N/A
Total floor area
167 m²
Envelope
| Construction | U-value |
|---|---|
| Walls | |
|
External Wall |
0.091 W/m²K |
| Roof | |
| Base | |
|
Floor Slab |
0.12 W/m²K |
| Windows | Uw | Uf | Ug | G |
|---|---|---|---|---|
|
Glazing: Frames: |
0.79 W/m²K | 0.81 W/m²K | 0.52 W/m²K | 51 % |
| Doors | U-value |
|---|---|
|
Entrance Door |
1.35 W/m²K |
nZEB Parameters
Primary energy consumption: 108kWh/m2year
Building tightness: 0.56/h
CO2 emissions: 12 kgCO2/m2year
Renewable share of energy: 34%