Contractor

Name : RoA Rongen Architekten PartG mbB

Contact : Ludwig Rongen, [email protected], Propsteigasse 2 41849 Wassenberg

 https://www.rongenarchitekten.com

Construction Manager

Name : Siemons & Hermann

Stakeholders

Function : Others

Schwinn Ingenieure

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Function : Others

Ingenieurbüro Knabben + Korbitza

Owner approach of sustainability

-Ecological, resource-saving building materials and energy-saving construction method

-Green flat roofs

Architectural description

On the property at Augenbroicherstrasse 49, 48 children were accommodated in 6 existing bungalows from the 1960s. Due to serious structural defects in the existing buildings, the LVR decided to demolish the old boarding school bungalows and replace them with new buildings. The four passive house boarding school residential buildings were built using a partially prefabricated timber frame construction and each have room for 8 residents in four single and two double rooms. Ecological, resource-saving building materials and energy-saving construction methods were the basis for planning and execution. Wood, a renewable and thus resource-saving main building material, was chosen. In addition, only ecologically safe and recyclable building materials were used. Both the new boarding school buildings and the associated outdoor area with its diverse play areas in the open spaces are barrier-free. For capacity reasons, two of the existing group houses, which were gradually dismantled until the completion of the entire construction project, had to remain in operation. Thus, the new boarding school buildings were realised in two main construction phases during ongoing operation.

Energy consumption

• Primary energy need : 80,00 kWhpe/m².year
• Primary energy need for standard building : 95,00 kWhpe/m².year

Calculation method : Other

More information :

Heating demand 14 kWh / (m2a) calculated according to PHPPPE demand (non-renewable primary energy) 80 kWh / (m2a) for heating, hot water, auxiliary and household electricity calculated according to PHPPPER demand (renewable primary energy) 83 kWh / (m2a) for heating, Hot water, auxiliary and household electricity calculated according to PHPP

Envelope performance

• Envelope U-Value : 0,13 W.m^-2.K^-1
More information :

External wall timber frame construction: Fermacell GFP 10mm insulation WLG 040 60mmFermacell GFP 13mm OSB board 18mmFachdämmung WLG 040 280mmDWD board 16mmU-value = 0.133 W / (m2K) basement ceiling / floor slab Floor slab: flooring anhydrite screed on system slab WLG 300mm -Value = 0.103 W / (m2K) roof flat roof: system structure green roof with sealing 160mm insulation 280mm cross-laminated timber ceiling 140mmU-value = 0.081 W / (m²K) monopitch roof: metal cladding insulation WLG 032 430mm cross-laminated timber ceiling 120mmU-value = 0.081 W / (m²K) U-value = 0.081 W / (m²K) U-value = 0.081 W / (m²K) U-value = 0.081 W / (m²K) / (m2K) Window frame wood-aluminum window IV 78 passive, IV 78 passive wood-aluminum window Uf value = 0.72 W / (m²K) U w value = 0.85 W / (m2K) Glazing triple thermal insulation glazing U g- Value = 0.6 W / (m2K) g value = 53% entrance door wood-aluminum-glass system U d-value = 0.85 W / (m2K)

• Air Tightness Value : 0,48

Systems

Heating system :
• Geothermal heat pump
Hot water system :
• Gas boiler
Cooling system :
• Solar cooling
• No cooling system
Ventilation system :
• compensated Air Handling Unit
• Double flow heat exchanger
Renewable systems :
• Heat Pump on geothermal probes

PER demand (renewable primary energy): 83 kWh / (m2a) on heating system, hot water, household electricity and auxiliary electricity, calculated according to PHPP

Construction and exploitation costs

• Total cost of the building : 10 374 617 €