basics:what_is_a_passive_house
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====== What is a Passive House? ====== | ====== What is a Passive House? ====== | ||
+ | Want to see a video first? Click the video-frame: | ||
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* Passive House buildings allow for heating and cooling related energy savings of up to 90% compared with typical building stock and over 75% compared with average new builds. In terms of heating oil, Passive House buildings use less than 1.5 litres per square meter of living space per year – far less than typical low-energy buildings. Similar energy savings have been demonstrated in warm climates where buildings require more energy for cooling than for heating. | * Passive House buildings allow for heating and cooling related energy savings of up to 90% compared with typical building stock and over 75% compared with average new builds. In terms of heating oil, Passive House buildings use less than 1.5 litres per square meter of living space per year – far less than typical low-energy buildings. Similar energy savings have been demonstrated in warm climates where buildings require more energy for cooling than for heating. | ||
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* Appropriate windows with good insulation and a building shell consisting of good insulated exterior walls, roof and floor slab keep the heat during winter in the house – and keep it out during summer. | * Appropriate windows with good insulation and a building shell consisting of good insulated exterior walls, roof and floor slab keep the heat during winter in the house – and keep it out during summer. | ||
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* A ventilation system consistently supplies fresh air making for superior air quality without causing any unpleasant draughts. This is e.g. a guarantee for low Radon levels and improves the health conditions. A highly efficient heat recovery unit allows for the heat contained in the exhaust air to be re-used.\\ | * A ventilation system consistently supplies fresh air making for superior air quality without causing any unpleasant draughts. This is e.g. a guarantee for low Radon levels and improves the health conditions. A highly efficient heat recovery unit allows for the heat contained in the exhaust air to be re-used.\\ | ||
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- | ====== The Passive House has got it all ====== | + | ===== The Passive House has got it all ===== |
- | == Comfort == | + | ==== Comfort |
The Passive House Standard offers a new level of quality pairing a maximum level of [[basics: | The Passive House Standard offers a new level of quality pairing a maximum level of [[basics: | ||
- | == Quality == | + | ==== Quality |
Passive House buildings are praised for their efficiency due to their high level of insulation and their airtight design. Another important principle is [[planning: | Passive House buildings are praised for their efficiency due to their high level of insulation and their airtight design. Another important principle is [[planning: | ||
- | == Ecology / Sustainability == | + | ==== Ecology / Sustainability |
You may have been surprised by not finding ecological aspects mentioned at the very beginning of this article. Passive House buildings are eco-friendly by definition: They use extremely little [[basics: | You may have been surprised by not finding ecological aspects mentioned at the very beginning of this article. Passive House buildings are eco-friendly by definition: They use extremely little [[basics: | ||
- | == Affordability == | + | ==== Affordability |
Are Passive House buildings a good investment? Passive House buildings not only save money over the long term, but are surprisingly affordable to begin with. The investment in higher quality building components required by the Passive House Standard is mitigated by the elimination of expensive heating and cooling systems. Additional financial support increasingly available in many countries makes building a Passive House all the more feasible. Learn more about [[basics: | Are Passive House buildings a good investment? Passive House buildings not only save money over the long term, but are surprisingly affordable to begin with. The investment in higher quality building components required by the Passive House Standard is mitigated by the elimination of expensive heating and cooling systems. Additional financial support increasingly available in many countries makes building a Passive House all the more feasible. Learn more about [[basics: | ||
- | == Measurement results == | + | ==== Measurement results |
- | Measurements carried out in 114 Passive House apartments which were part of the [[http:// | + | Measurements carried out in 114 Passive House apartments which were part of the CEPHEUS project showed average savings of approx. 90%; since then, lots of realized passive houses have been monitored with [[operation: |
- | == Versatility == | + | ==== Versatility |
Any competent architect can design a Passive House. By combining individual measures any new building anywhere in the world can be designed to reach the Passive House Standard. The versatile Passive House Standard is also increasingly being used for non-residential buildings such as administrative buildings and [[Examples: | Any competent architect can design a Passive House. By combining individual measures any new building anywhere in the world can be designed to reach the Passive House Standard. The versatile Passive House Standard is also increasingly being used for non-residential buildings such as administrative buildings and [[Examples: | ||
- | == Retrofits == | + | ==== Retrofits |
The Passive House Standard can also be achieved in [[planning: | The Passive House Standard can also be achieved in [[planning: | ||
- | == Hands-on experience of Passive Houses – You have to see one to believe it == | + | ==== Hands-on experience of Passive Houses – You have to see one to believe it ==== |
The International Passive House Open Days takes place once a year. At this event, hundreds of Passive House residents open their doors to anyone interested in getting a hands-on experience of living in a Passive House. The International Passive House Days are put on by the [[http:// | The International Passive House Open Days takes place once a year. At this event, hundreds of Passive House residents open their doors to anyone interested in getting a hands-on experience of living in a Passive House. The International Passive House Days are put on by the [[http:// | ||
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- | ====== And this is how it works ====== | + | ===== And this is how it works ===== |
- | **--> | + | **⇒ Efficiency improves comfort** |
The Passive House is the world leading standard in energy-efficient construction: | The Passive House is the world leading standard in energy-efficient construction: | ||
* Passive Houses require less than 15 kWh/(m²yr) for heating or cooling {{ : | * Passive Houses require less than 15 kWh/(m²yr) for heating or cooling {{ : | ||
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* The heating/ | * The heating/ | ||
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* Conventional Primary energy use may not exceed 120 kWh/(m²a) - but the future is renewable energy supply (PER) with no more than 60 kWh/(m²a). This is easy to accomplish with passive houses. | * Conventional Primary energy use may not exceed 120 kWh/(m²a) - but the future is renewable energy supply (PER) with no more than 60 kWh/(m²a). This is easy to accomplish with passive houses. | ||
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* Passive Houses must be airtight with air change rates being limited to n< | * Passive Houses must be airtight with air change rates being limited to n< | ||
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* In warmer climates and/or during summer months, excessive temperatures may not occur more than 10 % of the time. | * In warmer climates and/or during summer months, excessive temperatures may not occur more than 10 % of the time. | ||
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* As newer buildings are increasingly airtight, ventilation through joints and cracks alone is not sufficient to provide for fresh indoor air. Opening the windows as recommended won’t do the job either. Fresh air is not merely a matter of comfort but a necessity for healthy living - Indoor Air Quality (IAQ) is the basic performance goal. [[planning: | * As newer buildings are increasingly airtight, ventilation through joints and cracks alone is not sufficient to provide for fresh indoor air. Opening the windows as recommended won’t do the job either. Fresh air is not merely a matter of comfort but a necessity for healthy living - Indoor Air Quality (IAQ) is the basic performance goal. [[planning: | ||
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* This is where the Passive House concept comes in: As large amounts of fresh outdoor air need to be supplied to the building anyway, why not use this air for [[planning: | * This is where the Passive House concept comes in: As large amounts of fresh outdoor air need to be supplied to the building anyway, why not use this air for [[planning: | ||
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* This " | * This " | ||
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__**The Passive House – the leading concept for**__\\ | __**The Passive House – the leading concept for**__\\ | ||
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An [[planning: | An [[planning: | ||
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- | ====== What’s the Passive House “secret“? | + | ===== What’s the Passive House “secret“? |
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Products for Passive Houses are best practise products all around the world: Minimal U-values, superior window energy performance, | Products for Passive Houses are best practise products all around the world: Minimal U-values, superior window energy performance, | ||
- | ====== See also ====== | + | ===== See also ===== |
[[basics: | [[basics: |
basics/what_is_a_passive_house.txt · Last modified: 2022/09/25 19:35 by wfeist