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planning:planning:thermal_protection_and_modernisation_of_existing_buildings

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planning:planning:thermal_protection_and_modernisation_of_existing_buildings [2015/08/07 07:34]
kdreimane [Exemplary implementation of pilot projects]
planning:planning:thermal_protection_and_modernisation_of_existing_buildings [2019/02/28 11:10]
cblagojevic [Overall refurbishment plans for stepwise retrofit approaches]
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 [{{:​picopen:​enerphit.jpg?​160 |**Figure 1:  EnerPHit Seal**}}] \\ Achieving the Passive House Standard in refurbishments of existing buildings is not always a realistic goal, one of the reasons being that basement walls remain as barely avoidable thermal bridges even after refurbishment. In order to facilitate the achievement of an optimal standard of thermal protection in building refurbishments,​ the EnerPHit certification procedure was launched by the Passive House Institute in 2010. An optimal standard of thermal protection means a significantly better level of energy efficiency compared to the legal requirements must simultaneously go hand-in-hand with high cost efficiency of the thermal protection measures as a whole. At the same time, modernisation to the EnerPHit Standard also offers other advantages associated with the use of Passive House components, such as an excellent level of thermal comfort, structural integrity and high quality indoor air. [{{:​picopen:​enerphit.jpg?​160 |**Figure 1:  EnerPHit Seal**}}] \\ Achieving the Passive House Standard in refurbishments of existing buildings is not always a realistic goal, one of the reasons being that basement walls remain as barely avoidable thermal bridges even after refurbishment. In order to facilitate the achievement of an optimal standard of thermal protection in building refurbishments,​ the EnerPHit certification procedure was launched by the Passive House Institute in 2010. An optimal standard of thermal protection means a significantly better level of energy efficiency compared to the legal requirements must simultaneously go hand-in-hand with high cost efficiency of the thermal protection measures as a whole. At the same time, modernisation to the EnerPHit Standard also offers other advantages associated with the use of Passive House components, such as an excellent level of thermal comfort, structural integrity and high quality indoor air.
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 The primary aim of this certification is to provide quality assurance for the refurbishment so that the building owner can be sure that the stipulated optimal standard of thermal protection is actually achieved and that the implemented measures prove to be adequate. This is all the more important because subsequent "​correction"​ of inadequate thermal protection measures almost always proves to be uneconomical. The EnerPHit standard requires either a maximum heating demand of 25 kWh/(m²a) (in central Europe) or alternatively the consistent use of Passive House components in accordance with the requirements for PHI certification of components. The heating demand calculated by the PHPP, and the quality of thermal protection of the individual components are indicated in the certificate. The primary aim of this certification is to provide quality assurance for the refurbishment so that the building owner can be sure that the stipulated optimal standard of thermal protection is actually achieved and that the implemented measures prove to be adequate. This is all the more important because subsequent "​correction"​ of inadequate thermal protection measures almost always proves to be uneconomical. The EnerPHit standard requires either a maximum heating demand of 25 kWh/(m²a) (in central Europe) or alternatively the consistent use of Passive House components in accordance with the requirements for PHI certification of components. The heating demand calculated by the PHPP, and the quality of thermal protection of the individual components are indicated in the certificate.
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 [{{:​picopen:​phpp_9_with_data_entry_of_retrofit_steps.png?​500 |**Figure 5: PHPP 9 with data entry of retrofit steps**}}] So, instead of retrofitting a single component now and identify problems with following measures later, setting up an overall retrofit plan is the proper way to do it. Even though the initial effort for setting up such a plan, the creation of such a document makes sense, enabling the investor or building owner to have an overview over the efficiency properties of his building, the retrofit requirements and schedule and the reduction potentials for energy consumption and CO2 emissions. [{{:​picopen:​phpp_9_with_data_entry_of_retrofit_steps.png?​500 |**Figure 5: PHPP 9 with data entry of retrofit steps**}}] So, instead of retrofitting a single component now and identify problems with following measures later, setting up an overall retrofit plan is the proper way to do it. Even though the initial effort for setting up such a plan, the creation of such a document makes sense, enabling the investor or building owner to have an overview over the efficiency properties of his building, the retrofit requirements and schedule and the reduction potentials for energy consumption and CO2 emissions.
-  * Unordered List ItemFirst ​the existing building needs to be analysed, energy consumption,​ known problems and component life cycles taken into account +  * First the existing building needs to be analysed, energy consumption,​ known problems and component life cycles taken into account 
-  * Unordered List ItemAs ​a next step, the existing building needs to be entered into the PHPP 9. Then suggested measures can be entered separately as retrofit steps in PHPP 9, as variants to the existing building. The final step will illustrate that the efficiency improvements to be carried out will enable the building to fulfil EnerPHit standard. + 
-  * Unordered List ItemDescriptions ​of the retrofit steps and measures needs to be set up and a schematic diagram of the chronological flow of the modernisation steps or set of measures will be created. +  * As a next step, the existing building needs to be entered into the PHPP 9. Then suggested measures can be entered separately as retrofit steps in PHPP 9, as variants to the existing building. The final step will illustrate that the efficiency improvements to be carried out will enable the building to fulfil EnerPHit standard. 
-  * Unordered List ItemAdditionally, it is recommended to follow a checklist for typical considerations with the sequential order (e.g. airtightness before installation of the ventilation system; renewal of the heating system before optimisation of the thermal protection, insulation of the floor before replacement of French windows etc.). + 
-  * Unordered List ItemSpecific ​connection details between components and spate retrofit steps will need to be roughly be sketched. In these sketches the airtightness-layer needs to be indicated and described.+  * Descriptions ​of the retrofit steps and measures needs to be set up and a schematic diagram of the chronological flow of the modernisation steps or set of measures will be created. 
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 +  * Additionally, it is recommended to follow a checklist for typical considerations with the sequential order (e.g. airtightness before installation of the ventilation system; renewal of the heating system before optimisation of the thermal protection, insulation of the floor before replacement of French windows etc.). 
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 +  * Specific ​connection details between components and spate retrofit steps will need to be roughly be sketched. In these sketches the airtightness-layer needs to be indicated and described.
  
  An overall refurbishment plan set up like this allows the building owner to understand the retrofit concept, required component qualities and dependencies of the separate retrofit steps. Just as well, the contractors,​ who will carry out the retrofit steps have this document as guideline for their work.  An overall refurbishment plan set up like this allows the building owner to understand the retrofit concept, required component qualities and dependencies of the separate retrofit steps. Just as well, the contractors,​ who will carry out the retrofit steps have this document as guideline for their work.
planning/planning/thermal_protection_and_modernisation_of_existing_buildings.txt · Last modified: 2019/02/28 11:10 by cblagojevic