My question about building a new KfW 55 or better house: What exactly does it mean? Yesterday, I spoke with the managing director of a public construction company, and he advised me not to build a KfW house.
a) You would need a building supervisor (who is also specialized in this field).
b) If you insulate the house well, etc., the additional costs are low.
Furthermore, he recommended using a gas boiler + solar including battery instead of an air-to-water heat pump + solar including battery. The initial costs are much lower, and you will never recover the higher acquisition costs.
I am a bit confused. I originally planned to build at least a KfW 55 house.
For your information, our plot is fully developed, and a gas connection is available.
a) You would need a building supervisor (who is also specialized in this field).
b) If you insulate the house well, etc., the additional costs are low.
Furthermore, he recommended using a gas boiler + solar including battery instead of an air-to-water heat pump + solar including battery. The initial costs are much lower, and you will never recover the higher acquisition costs.
I am a bit confused. I originally planned to build at least a KfW 55 house.
For your information, our plot is fully developed, and a gas connection is available.
T
T_im_Norden26 Jun 2020 14:272021/22 are not passive houses, as they still follow the existing energy saving regulations for houses.
The Building Energy Act was only delayed by the coronavirus pandemic.
Quote from Energy Saving Ordinance Online:
Announcement and Entry into Force:
NEW: As we have learned today (June 24, 2020) from government sources, the Building Energy Act is expected to be published in the Federal Law Gazette either in June or, at the latest, in July.
The law will take effect on the "... first day of the third calendar month following the publication." If published in June, this means from September 1, 2020, and if published in July, then from October 1, 2020. This gives builders, planners, and software developers time to adapt to the Building Energy Act by then.
Quote from Energy Saving Ordinance Online:
Announcement and Entry into Force:
NEW: As we have learned today (June 24, 2020) from government sources, the Building Energy Act is expected to be published in the Federal Law Gazette either in June or, at the latest, in July.
The law will take effect on the "... first day of the third calendar month following the publication." If published in June, this means from September 1, 2020, and if published in July, then from October 1, 2020. This gives builders, planners, and software developers time to adapt to the Building Energy Act by then.
T
T_im_Norden26 Jun 2020 14:47The German implementation of "Nearly Zero-Energy Buildings" considers the previous requirements to be sufficient.
This also means that there will be no tightening of the energy efficiency standards.
This also means that there will be no tightening of the energy efficiency standards.
T
T_im_Norden26 Jun 2020 15:12This is stated in the draft and can also be found using Google under "what changes with the building energy law."
The main advantage is the simplification of applications and calculation methods (thermal bridges, for example).
Use of certain DIN standards and similar.
Credit for photovoltaic systems in buildings to achieve around 15%.
The main advantage is the simplification of applications and calculation methods (thermal bridges, for example).
Use of certain DIN standards and similar.
Credit for photovoltaic systems in buildings to achieve around 15%.
The draft also states:
The final energy demand for a new building according to the Building Energy Act is between 45 and 60 kilowatt-hours per square meter of usable floor area. However, a compromise has been reached on this.
A review is recommended for 2023, so a loss of value may still apply to a new building. Architects are generally advised by their professional chambers to inform clients accordingly from 2019 onward, to avoid liability claims against the architects.
I will see if the results remain the same.
The new Supplement II on thermal bridges has already been released and may already be in use.
The final energy demand for a new building according to the Building Energy Act is between 45 and 60 kilowatt-hours per square meter of usable floor area. However, a compromise has been reached on this.
A review is recommended for 2023, so a loss of value may still apply to a new building. Architects are generally advised by their professional chambers to inform clients accordingly from 2019 onward, to avoid liability claims against the architects.
I will see if the results remain the same.
The new Supplement II on thermal bridges has already been released and may already be in use.
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