Technical lifetime of prototypical nZEB elements.
|Position||Techn. lifetime (y)||Technology||Techn. lifetime (y)|
|Exterior wall||40||Air heat pump||20|
|Floor construction||40||Buffer storage||20|
|Flat roof construction||40||Thermal collectors||20|
|Windows and doors||40||Ventilation unit with heat rec.||15|
|External sun protection||40||Air ducts, air distribution system||30|
|Interior wall and elements||40||Compressor cooling||15|
|Kitchen and bathroom furniture||40||Free cooling||40|
|Electric network||25||PV − modules||25|
|Heat distribution network||30||PV − inverter||15|
|Floor heating||40||Cables for PV and Inverter||40|
|District heating transfer station||20||Building automation system||40|
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