ᐅ How can requirements like the 2016 energy-saving regulations be met?
Created on: 2 Jan 2016 17:54
P
pius123
Are there any layman-friendly resources that clearly explain which construction measures are needed to meet the requirements of the 2016 Energy Saving Ordinance?
For example, if I want to build with Poroton bricks without additional insulation, combined with a heat pump and a ventilation system, I would like to understand what the specifications need to be to make that work—without having to consult a mathematics professor.
Regards
Pius
For example, if I want to build with Poroton bricks without additional insulation, combined with a heat pump and a ventilation system, I would like to understand what the specifications need to be to make that work—without having to consult a mathematics professor.
Regards
Pius
BeHaElJa schrieb:
Take a look at the detailed scope of work from the main general contractors (GCs) – these are available online. This gives a fairly clear idea of what is included and what is not.Our experience is that there is some uncertainty among the GCs regarding the new energy-saving regulations – both in terms of implementation and impact.
We submitted just before the end of the year and are glad to still have the old rules, as they still allow options for building with gas without solar panels.
Hello Cumpa,
Excerpt from the information sheet "Energy-Efficient Building (153)"
Alternative proof of a KfW Efficiency House 55 based on reference values
The requirements for a KfW Efficiency House 55 are met if the following constructional and technical system requirements (reference values) are implemented. In this case, a calculated proof for the KfW Efficiency House 55 is not necessary.
1.) The following requirements for the individual components of the thermal building envelope must be observed. The requirements for the execution of thermal bridges and the airtightness of the building envelope must also be met.
• Roof surfaces, top floor ceiling, dormers U ≤ 0.14 W/(m²·K)
• Windows and other transparent elements Uw ≤ 0.90 W/(m²·K)
• Exterior walls, ceilings adjacent to outdoor air U ≤ 0.20 W/(m²·K)
• Other opaque components (basement ceilings, walls and ceilings to unheated rooms, wall and floor surfaces against the ground, etc.) U ≤ 0.25 W/(m²·K)
• Doors (basement and exterior doors) UD ≤ 1.2 W/(m²·K)
• Avoidance of thermal bridges ΔUWB ≤ 0.035 W/(m²·K)
• Airtightness of the building envelope n50 ≤ 1.5 h⁻¹
2.) For the technical systems, one of the six following system concepts must be implemented. The location of the heat generator or heat transfer station must be within the thermal building envelope, and central domestic hot water production must be provided. Domestic hot water circulation is allowed.
1. Condensing boiler, solar domestic hot water production (standard values according to DIN V 4701-10), central ventilation system with heat recovery (heat provision efficiency > 80%)
2. District heating with certified primary energy factor fp ≤ 0.7, central ventilation system with heat recovery (heat provision efficiency > 80%)
3. Central biomass heating system based on wood pellets, wood chips, or logs
4. Ground-source heat pump with a surface heating system for heat delivery, central exhaust system
5. Water-source heat pump with a surface heating system for heat delivery, central exhaust system
6. Air-source heat pump with a surface heating system for heat delivery, central ventilation system with heat recovery (heat provision efficiency > 80%)
A central exhaust system can be replaced by a ventilation system with heat recovery. Deviations beyond the specified requirements for the building components and the listed system concepts are not permitted for this verification procedure. Additional heat generators for heating or domestic hot water are not allowed, not even as supplementary heat generators. Where applicable, the concepts can be supplemented with solar thermal systems (heating support, domestic hot water production) or photovoltaic systems.
Hope this helps you a bit further.
Regards
D.Gerner
Excerpt from the information sheet "Energy-Efficient Building (153)"
Alternative proof of a KfW Efficiency House 55 based on reference values
The requirements for a KfW Efficiency House 55 are met if the following constructional and technical system requirements (reference values) are implemented. In this case, a calculated proof for the KfW Efficiency House 55 is not necessary.
1.) The following requirements for the individual components of the thermal building envelope must be observed. The requirements for the execution of thermal bridges and the airtightness of the building envelope must also be met.
• Roof surfaces, top floor ceiling, dormers U ≤ 0.14 W/(m²·K)
• Windows and other transparent elements Uw ≤ 0.90 W/(m²·K)
• Exterior walls, ceilings adjacent to outdoor air U ≤ 0.20 W/(m²·K)
• Other opaque components (basement ceilings, walls and ceilings to unheated rooms, wall and floor surfaces against the ground, etc.) U ≤ 0.25 W/(m²·K)
• Doors (basement and exterior doors) UD ≤ 1.2 W/(m²·K)
• Avoidance of thermal bridges ΔUWB ≤ 0.035 W/(m²·K)
• Airtightness of the building envelope n50 ≤ 1.5 h⁻¹
2.) For the technical systems, one of the six following system concepts must be implemented. The location of the heat generator or heat transfer station must be within the thermal building envelope, and central domestic hot water production must be provided. Domestic hot water circulation is allowed.
1. Condensing boiler, solar domestic hot water production (standard values according to DIN V 4701-10), central ventilation system with heat recovery (heat provision efficiency > 80%)
2. District heating with certified primary energy factor fp ≤ 0.7, central ventilation system with heat recovery (heat provision efficiency > 80%)
3. Central biomass heating system based on wood pellets, wood chips, or logs
4. Ground-source heat pump with a surface heating system for heat delivery, central exhaust system
5. Water-source heat pump with a surface heating system for heat delivery, central exhaust system
6. Air-source heat pump with a surface heating system for heat delivery, central ventilation system with heat recovery (heat provision efficiency > 80%)
A central exhaust system can be replaced by a ventilation system with heat recovery. Deviations beyond the specified requirements for the building components and the listed system concepts are not permitted for this verification procedure. Additional heat generators for heating or domestic hot water are not allowed, not even as supplementary heat generators. Where applicable, the concepts can be supplemented with solar thermal systems (heating support, domestic hot water production) or photovoltaic systems.
Hope this helps you a bit further.
Regards
D.Gerner
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