Primary energy demand in KfW55

  • Erstellt am 2016-06-03 12:37:35

BastianB

2016-06-06 12:57:46
  • #1
The final energy demand definitely seems too high to me! For approximately Kfw55, we have a final energy demand of ~10 kWh/m2a
 

DragonyxXL

2016-06-06 13:09:46
  • #2
And what do I do now? I can hardly go to the structural engineer and tell him that he probably miscalculated. How can one get to the bottom of the matter?
 

Bauexperte

2016-06-06 19:45:16
  • #3
You can ask him how this discrepancy is possible?


Construction expert on the go
 

Uwe82

2016-06-06 23:48:53
  • #4
We slipped just past 55 with a final energy demand of 15.4.
 

DragonyxXL

2016-06-07 09:46:59
  • #5

That's exactly what I mean. Discrepancy to what? "But I heard different values in a forum."?
 

Bauexperte

2016-06-07 09:53:17
  • #6
Heaven help .... You write: "I was a bit puzzled by the primary energy demand in our thermal protection verification. Isn't almost 50 kWh/m2a a bit too high for a KfW55 house?" There is a lot to read in forums, whether it's always correct, it doesn't say there; apart from the fact that two houses of different construction and location are not comparable. So what do you lose if you ask your structural engineer exactly this question? PS: if the calculation is correct, no one – except your structural engineer – will notice if you blush a little out of embarrassment :D Rhineland greetings
 

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