Practices

The Commission is in the process of updating some of the content on this website in light of the withdrawal of the United Kingdom from the European Union. If the site contains content that does not yet reflect the withdrawal of the United Kingdom, it is unintentional and will be addressed.

Passive office in Fretin (Hauts-de-France)

Share this Post:

Credits: Passive House Database

Passives office having obtained the Passif Plus label with in particular a large surface area of ​​photovoltaic panels.

Treated Floor Area according to PHPP: 217 m2

Construction type: timber construction

Year of construction: 2019

 

THERMAL ENVELOPE

 

Exterior wall:

 

BA13 0.320 W / (mK) 13 mm
Wood wool int 0.038 W / (mK) 100 mm
OSB 0.130 W / (mK) 15 mm
Cellulose wadding 0.042 W / (mK) 240 mm Wood (7,5%)
Fiber ext 0.044 W / (mK) 35 mm
U-value = 0.113 W/(m2K)

 

Basement floor / floor slab:

 

Screed 1,500 W / (mK) 70 mm
OSB panel 3 0.130 W / (mK) 18 mm
Cellulose wadding 0.042 W / (mK) 45 mm Wood (12.2%)
Cellulose wadding 0.042 W / (mK) 270 mm Wood (2.8%)
Cellulose wadding 0.042 W / (mK) 45 mm Wood (12.2%)
0.090 W / (mK) 16mm DWD panel
U-value = 0.12 W/(m2K)

 

Roof:

 

BA13 0.320 W / (mK) 13mm
Technical vacuum 1,225 W / (mK) 200mm
Cellulose wadding 0.042 W / (mK) 45mm Wood (7.2%)
Cellulose wadding 0.042 W / (mK) 270mm Wood (1.6%)
Cellulose wadding 0.042 W / (mK) 45mm Wood (7.2%)
OSB panel 3 0.130 W / (mK) 22mm
U-value = 0.118 W/(m2K)

 

MECHANICAL SYSTEM

 

Ventilation. Zehnder, ComfoAir 600

Heating installation: Direct Electricity

Domestic hot water: Heat Pump

 

PHPP VALUES

 

Climate: Cool, temperate

Air tightness: n50 = 0.39/h

Annual heating demand: 10 kWh /(m2a ) calculated according to PHPP

Heating load: 11 W/m2

PE demand (non-renewable Primary Energy): 109 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP

PER demand (renewable Primary Energy): 55 kWh /(m2a ) on heating installation, domestic hot water, household electricity and auxiliary electricity calculated according to PHPP

Generation of renewable energy: 667 kWh /(m2a ) based on the projected area

 

Further information can be found here.

 

Award labels

Available link languages