Hello,
Today we received the "Confirmation for the Application (BZA)" from the expert for the KfW program 153 (Energy-Efficient Construction). I noticed two points where I would appreciate your professional opinion before we sign it and submit it to the bank.
Briefly about the basic data of the planned house:
New build solid construction house with exterior walls made of 36.5 cm (14 inches) aerated concrete
Ground floor and finished attic; the loft according to the design drawing is outside the insulated building envelope (see attachment)
Heat generation with an air-to-water heat pump (Rotex)
Net floor area: 141.05 m² (1,519 sq ft)
Living area: 126.26 m² (1,360 sq ft)
Gross volume according to DIN 277: 541.691 m³ (19,132 cubic feet)
The questions:
The expert determined a primary energy demand of 35.3 kWh/m² per year. Could that be correct?
More importantly for me:
He calculated a usable floor area of 172.1 m² (1,852 sq ft). Is that possible without including the unheated loft? I seem to have read that the loft is often included to improve the KfW figures.
Many thanks!!!
Marko
Today we received the "Confirmation for the Application (BZA)" from the expert for the KfW program 153 (Energy-Efficient Construction). I noticed two points where I would appreciate your professional opinion before we sign it and submit it to the bank.
Briefly about the basic data of the planned house:
New build solid construction house with exterior walls made of 36.5 cm (14 inches) aerated concrete
Ground floor and finished attic; the loft according to the design drawing is outside the insulated building envelope (see attachment)
Heat generation with an air-to-water heat pump (Rotex)
Net floor area: 141.05 m² (1,519 sq ft)
Living area: 126.26 m² (1,360 sq ft)
Gross volume according to DIN 277: 541.691 m³ (19,132 cubic feet)
The questions:
The expert determined a primary energy demand of 35.3 kWh/m² per year. Could that be correct?
More importantly for me:
He calculated a usable floor area of 172.1 m² (1,852 sq ft). Is that possible without including the unheated loft? I seem to have read that the loft is often included to improve the KfW figures.
Many thanks!!!
Marko
B
Bauexperte14 Jun 2016 20:49@ Marko
Regarding 1: yes
Regarding 2: yes
You shouldn’t think or believe; that’s what pastors/reverends are for. SCNR :-)
And where does your distrust come from in the first place?
Bauexperte
Regarding 1: yes
Regarding 2: yes
You shouldn’t think or believe; that’s what pastors/reverends are for. SCNR :-)
And where does your distrust come from in the first place?
Bauexperte
@Bauexperte: Thank you for your response. This is not meant as distrust, just being overly cautious. 😉
Bauexperte schrieb:
@ Marko
Regarding point 1: yes
Regarding point 2: yes
You shouldn’t think or believe; that’s what priests/pastors are for. SCNR :-)
And where does your distrust come from in the first place?
Bauexperte
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