ᐅ How to have the construction of a KfW40/55 house certified by an expert?
Created on: 16 Nov 2010 08:50
B
BauexperteB
Bauexperte16 Nov 2010 08:50Kfw 40 House
Hello,
To verify the energy performance level, the annual primary energy demand (Qp) and the transmission heat loss per heat-transferring building envelope area (H'T) of the reference building according to the Energy Saving Ordinance 2009 Annex 1, Table 1 must be determined by an expert. The targeted KfW efficiency house standard must be confirmed by an expert at the time of application (form number 600 000 1503).
In the case of a KfW Efficiency House 40 or 55 / Passive House, planning and construction supervision by an expert must be documented as mandatory.
The expert must provide at least the following services:
- Specific detailed planning, especially airtightness concept and ventilation concept when installing a ventilation system, or provision of parameters from the energy demand calculation to the heating planner,
- Review of the bill of quantities,
- At least one site inspection before plastering or before closing any cladding, including inspection of thermal bridge execution and implementation of airtightness and ventilation concepts including blower door testing,
- Monitoring and support during the handover of building services systems, if applicable with additional technical instruction on the building services and, if necessary, verification of the hydraulic balancing and adjustment of the system.
Who is authorized as an expert?
An expert within the meaning of the funding guidelines is an energy consultant approved under the federal “On-site Consultation” program or by the consumer advice association, or a person authorized to issue certificates according to § 21 of the Energy Saving Ordinance 2009.
So, to answer your question, it is more likely the structural engineer than the architect.
Kind regards
Hello,
maccus schrieb:
How can the construction of a KFW40/55 house be verified? Is it necessary to involve an expert (according to a friend’s statement), or is a confirmation from the architect sufficient? And of course the most important question: if an expert is necessary, what costs should I expect?
To verify the energy performance level, the annual primary energy demand (Qp) and the transmission heat loss per heat-transferring building envelope area (H'T) of the reference building according to the Energy Saving Ordinance 2009 Annex 1, Table 1 must be determined by an expert. The targeted KfW efficiency house standard must be confirmed by an expert at the time of application (form number 600 000 1503).
In the case of a KfW Efficiency House 40 or 55 / Passive House, planning and construction supervision by an expert must be documented as mandatory.
The expert must provide at least the following services:
- Specific detailed planning, especially airtightness concept and ventilation concept when installing a ventilation system, or provision of parameters from the energy demand calculation to the heating planner,
- Review of the bill of quantities,
- At least one site inspection before plastering or before closing any cladding, including inspection of thermal bridge execution and implementation of airtightness and ventilation concepts including blower door testing,
- Monitoring and support during the handover of building services systems, if applicable with additional technical instruction on the building services and, if necessary, verification of the hydraulic balancing and adjustment of the system.
Who is authorized as an expert?
An expert within the meaning of the funding guidelines is an energy consultant approved under the federal “On-site Consultation” program or by the consumer advice association, or a person authorized to issue certificates according to § 21 of the Energy Saving Ordinance 2009.
So, to answer your question, it is more likely the structural engineer than the architect.
Kind regards
Similar topics