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planning:refurbishment_with_passive_house_components [2025/01/17 07:59] – yaling.hsiao@passiv.deplanning:refurbishment_with_passive_house_components [2025/04/24 14:56] (current) – old revision restored (2025/04/24 14:21) yaling.hsiao@passiv.de
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 ====== Refurbishment with Passive House components ====== ====== Refurbishment with Passive House components ======
 +
 +<WRAP box TIP> 
 +**Quick and easy retrofit measures**\\
 +Even small retrofit measures can contribute to energy savings and home improvements. Implemented by professionals or as “Do-It-Yourself” DIY project, such energy efficiency measures are an excellent way to speed up the energy transition. With the **[[:efficiency_now|Efficiency NOW!]]** campaign, the Passive House Institute are providing guidance and detailed instructions for people to make their homes more energy efficient. The information is intended for beginners, for experienced DIY-ers, as well as professionals.
 +</WRAP> 
  
 Existing buildings account for the greatest share of energy used in buildings - worldwide but especially in industrialised countries. With an estimated 95% of the buildings standing today likely still in use in 2050, deep renovation must be a priority. A great number of these buildings require overall or partial refurbishment or modernisation immediately or in the upcoming decades. Each such occasion is a perfect opportunity to reduce the energy consumption of these buildings by applying appropriate methods. Using components and approaches developed for new Passive House buildings also leads for significant energy savings in existing buildings. Existing buildings account for the greatest share of energy used in buildings - worldwide but especially in industrialised countries. With an estimated 95% of the buildings standing today likely still in use in 2050, deep renovation must be a priority. A great number of these buildings require overall or partial refurbishment or modernisation immediately or in the upcoming decades. Each such occasion is a perfect opportunity to reduce the energy consumption of these buildings by applying appropriate methods. Using components and approaches developed for new Passive House buildings also leads for significant energy savings in existing buildings.
  
 Context and introductory reading on the topic of refurbishment with Passive House components:  Context and introductory reading on the topic of refurbishment with Passive House components: 
-  * [[certification:enerphit:enerphit_building_renovation|Highly efficient building renovation as a societal no-regret measure]] \\ 
   * [[:planning:refurbishment_with_passive_house_components:passive_house_refurbishment_-_introduction|Refurbishment with Passive House components - introduction]]\\   * [[:planning:refurbishment_with_passive_house_components:passive_house_refurbishment_-_introduction|Refurbishment with Passive House components - introduction]]\\
   * Brochure: [[https://univention.passiv.de/nextcloud/s/GjK69ZWDBb9aHNb|Renovation done right - Success stories with the EnerPHit Standard]]\\   * Brochure: [[https://univention.passiv.de/nextcloud/s/GjK69ZWDBb9aHNb|Renovation done right - Success stories with the EnerPHit Standard]]\\
   * Brochure: [[https://univention.passiv.de/nextcloud/s/8YjHb5EEqTfNzio|EnerPHit - Renovating with Passive House components]]\\   * Brochure: [[https://univention.passiv.de/nextcloud/s/8YjHb5EEqTfNzio|EnerPHit - Renovating with Passive House components]]\\
-  * Research paper: [[https://rdcu.be/cFgCo|Retrofit with Passive House components]] [Bastian et al. 2022]+  * Peer-reviewed article: [[https://rdcu.be/cFgCo|Retrofit with Passive House components]] [Bastian et al. 2022] 
 +  * [[certification:enerphit:enerphit_building_renovation|Highly efficient building renovation as a societal no-regret measure]] \\
  
 ==== How we renovate matters ==== ==== How we renovate matters ====
 Poor quality reburfishments can result in lock-in effects with suboptimal improvements typically left untouched for decades, if not generations. We simply cannot afford the resulting missed opportunities for energy savings and emissions reductions. Truly high performance refurbishment with a fabric first approach has the power to substanitally mitigate climate impacts while providing manifold other benefits (as outlined below). On a societal level, high-performance renovations will also dampen peak loads on our energy grids, boost our energy independence and facilitate out transition to a renewables-based energy supply, thus further contributing to our climate goals.  Poor quality reburfishments can result in lock-in effects with suboptimal improvements typically left untouched for decades, if not generations. We simply cannot afford the resulting missed opportunities for energy savings and emissions reductions. Truly high performance refurbishment with a fabric first approach has the power to substanitally mitigate climate impacts while providing manifold other benefits (as outlined below). On a societal level, high-performance renovations will also dampen peak loads on our energy grids, boost our energy independence and facilitate out transition to a renewables-based energy supply, thus further contributing to our climate goals. 
  
-[{{ :picopen:lock_in.png?width="500"height="500 |Comparison of a building's energy demand following either shallow retrofit (dark green) or deep retrofit measures at every reburbishment step. Choosing mediocre efficiency levels will lock in the long-term energy performance of the building, the so-called "lock-in effect").}}]+[{{:picopen:lock_in.png?width="500"height="500 |Comparison of a building's energy demand following either shallow retrofit (dark green) or deep retrofit measures at every reburbishment step. Choosing mediocre efficiency levels will lock in the long-term energy performance of the building, the so-called "lock-in effect").}}]
  
 ==== Benefits of deep energy refurbishment ==== ==== Benefits of deep energy refurbishment ====
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 ==== Five Passive House principles applied to existing buildings ==== ==== Five Passive House principles applied to existing buildings ====
  
-{{:picopen:02_principles_en_2021.jpeg?400 |02_principles_en_2021.jpeg}}+{{:picopen:02_principles_en_2021.jpeg?400  |02_principles_en_2021.jpeg}}
  
 \\ \\
-\\+1. Insulation - [[.:refurbishment_with_passive_house_components:thermal_envelope#insulation|Passive House retrofits: Thermal envelope ]]
  
-1. Insulation - [[:planning:refurbishment_with_passive_house_components:thermal_envelope#insulation|Passive House retrofits: Thermal envelope | Insulation]]\\+2. Thermal bridge free design - [[.:refurbishment_with_passive_house_components:thermal_envelope#thermal_bridges|Passive House retrofits: Thermal envelope ]]
  
-2. Thermal bridge free design - [[:planning:refurbishment_with_passive_house_components:thermal_envelope#Thermal bridges|Passive House retrofits: Thermal envelope | Thermal bridges]]\\+3. Airtightness - [[.:refurbishment_with_passive_house_components:thermal_envelope#airtightness|Passive House retrofits: Thermal envelope ]]
  
-3. Airtightness - [[:planning:refurbishment_with_passive_house_components:thermal_envelope#Airtightness|Passive House retrofits: Thermal envelope | Airtightness]]\\+4. Passive House Windows - [[.:refurbishment_with_passive_house_components:thermal_envelope#window_replacement|Passive House retrofit: Thermal envelope ]]
  
-4. Passive House Windows - [[:planning:refurbishment_with_passive_house_components:thermal_envelope#Window replacement|Passive House retrofit: Thermal envelope | Windows]]\\ +5. Ventilation with heat recovery - [[.:refurbishment_with_passive_house_components:mechanical_systems#ventilation|Passive House retrofits: Mechanical systems ]]
- +
-5. Ventilation with heat recovery - [[:planning:refurbishment_with_passive_house_components:mechanical_systems#ventilation|Passive House retrofits: Mechanical systems | Ventilation]] +
- +
-\\+
  
  
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 For the retrofit of existing buildings, the Passive House Standard cannot always be fully achieved with reasonable effort. This may be because of unavoidable thermal bridges due to existing basement walls, for example, or the building's fixed orientation. For such buildings, the Passive House Institute has developed the **EnerPHit Standard**. //EnerPHit// is to renovations what //Passive House// is to new builds. Both standards are based on the same, basic physical principles and both ensure that the energy savings over a building's lifecycle will more than make up for upfront investment.  For the retrofit of existing buildings, the Passive House Standard cannot always be fully achieved with reasonable effort. This may be because of unavoidable thermal bridges due to existing basement walls, for example, or the building's fixed orientation. For such buildings, the Passive House Institute has developed the **EnerPHit Standard**. //EnerPHit// is to renovations what //Passive House// is to new builds. Both standards are based on the same, basic physical principles and both ensure that the energy savings over a building's lifecycle will more than make up for upfront investment. 
  
-The EnerPHit accreditation provides certainty and quality assurance that an optimal standard of thermal protection has been achieved for the existing building. There are two compliance methods: Based on component qualities or based on energy targets. This makes EnerPHit flexible and applicable for diverse building types and for different climate zones. It can be applied in one go or as phased refurbishment (step-by-step) and is founded on the principle of avoiding and preventing lock-in: \\ **If you do it, do it right [[:certification:enerphit|Read more about the EnerPHit Standard]]**.+The EnerPHit accreditation provides certainty and quality assurance that an optimal standard of thermal protection has been achieved for the existing building. There are two compliance methods: Based on component qualities or based on energy targets. This makes EnerPHit flexible and applicable for diverse building types and for different climate zones. It can be applied in one go or as phased refurbishment (step-by-step) and is founded on the principle of avoiding and preventing lock-in: **If you do it, do it right** 
 + 
 +**[[:certification:enerphit|Read more about the EnerPHit Standard]]**
  
 ===== Economic feasibility ===== ===== Economic feasibility =====
  
-[{{ :picopen:unbenannt.png?200|The refurbishment of this multifamily building in Giessen, Germany achieved measured heating savings of more than 70 %. This success story confirms the potential of energyefficient refurbishment of existing buildings}}]+[{{ :picopen:outphit_giessen.png?400|The refurbishment of this multifamily building in Giessen, Germany achieved measured heating savings of more than 70 %. This success story confirms the potential of energyefficient refurbishment of existing buildings}}]
  
 For achieving cost efficiency, it is crucial to couple the energy-saving measures with renovation measures that would have been necessary in any case. For example, if the facade needs to be renovated anyway, then the additional expenditure for simultaneous thermal insulation to the Passive House Standard with remain manageable. Nowadays, it is possible to carry out better measures at low differential costs, later installation would require the same effort once again for scaffolding, installing, protection from weather, etc. That is why, from the very beginning, great attention must be paid to a high quality of the thermal and energy-relevant aspects of each procedure.  For achieving cost efficiency, it is crucial to couple the energy-saving measures with renovation measures that would have been necessary in any case. For example, if the facade needs to be renovated anyway, then the additional expenditure for simultaneous thermal insulation to the Passive House Standard with remain manageable. Nowadays, it is possible to carry out better measures at low differential costs, later installation would require the same effort once again for scaffolding, installing, protection from weather, etc. That is why, from the very beginning, great attention must be paid to a high quality of the thermal and energy-relevant aspects of each procedure. 
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   * [[planning:refurbishment_with_passive_house_components:example_of_incentive_programmes_the_kfw_in_germany]]   * [[planning:refurbishment_with_passive_house_components:example_of_incentive_programmes_the_kfw_in_germany]]
   * [[https://passivehouse.com/05_service/03_literature/0302_cost-effectiveness/030202_energy-efficiency_sustainable-housing_Mexico.htm|Study of energy efficiency for Sustainable Housing in Mexico]]   * [[https://passivehouse.com/05_service/03_literature/0302_cost-effectiveness/030202_energy-efficiency_sustainable-housing_Mexico.htm|Study of energy efficiency for Sustainable Housing in Mexico]]
 +  * [[:policy:eu_taxonomy_regulation]]
  
  
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 ===== Performance monitoring ===== ===== Performance monitoring =====
  
-The best proof of concept is always in-use performance monitoring. Positives results of EnerPHit renovations have been demonstrated and documented. Here are some examples and relevant articles: +The best proof of concept is always in-use performance monitoring. Positives results of EnerPHit renovations have been demonstrated and documented. Here are some examples and relevant articles:
  
-  * [[operation:operation_and_experience:measurement_results:energy_use_measurement_results#3. Refurbishment with Passive House components|Performance results of retrofit projects]]+  * [[:operation:operation_and_experience:measurement_results:energy_use_measurement_results#refurbishment_with_passive_house_components|Performance results of retrofit projects]]
   * [[:construction:quality_assurance:nuremberg_case_study|Nuremberg Case Study in detail]]   * [[:construction:quality_assurance:nuremberg_case_study|Nuremberg Case Study in detail]]
-  * [[planning:refurbishment_with_passive_house_components:living_quality_monitoring|]]+  * [[.:refurbishment_with_passive_house_components:living_quality_monitoring|]]
  
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 ===== Retrofit approaches and selected case studies ===== ===== Retrofit approaches and selected case studies =====
planning/refurbishment_with_passive_house_components.1737097167.txt.gz · Last modified: by yaling.hsiao@passiv.de