Residence of 16 passive dwellings with all comforts and very low charges for the social landlord Vilogia in Roncq on the former site of Actival II, a former cloth weaving mill which merged in 1965 with the Ets Motte-Dewavrin.

Thermal envelope

Exterior wall: Concrete 2,000 200
Mineral wool 0,035 300
Brick 1,000 100
U-value = 0.162 W/(m2K)

Basement floor / floor slab: Concrete 2,100 200
EPS 0,038 300
U-value = 0.123 W/(m2K)

Roof: Concrete 2,100 200
Polyurethane 0,022 280
U-value = 0.077 W/(m2K)

Frame: Schüco Living 82 Fixe, 0,92
PVC window frame with reinforcing steel profiles. Bottom profile insulated by XPS (0.030 W/(mK)).
Airtightness value of 0.19 m3/(h*m) ensured at a terrace door with flying mullion, 168 cm * 257 cm.
Pane thickness: 44 mm (4/16/4/16/4), rebate depth: 20 mm. Spacer: SWISSPACER Ultimate.
U w-value = 1 W/(m2K)

Mechanical systems

Ventilation: VEX500 C4, Component-ID 0764vl03
This certificate was awarded based on the product meeting the following main criteria
Heat recovery rate HR 75%
Specific electric power Pel,spec 0.45 Wh/m3

Heating installation: 10-Improved condensing gas boiler running on natural gas, then tomorrow on biogas and finally after tomorrow on renewable gas

Domestic hot water: 10-Improved condensing gas boiler running on natural gas, then tomorrow on biogas and finally after tomorrow on renewable gas

Find more details here.