{"id":2310,"date":"2025-07-24T08:05:22","date_gmt":"2025-07-24T08:05:22","guid":{"rendered":"https:\/\/emecestudio.com\/what-is-a-passive-house-or-passivhaus\/"},"modified":"2026-03-04T13:46:43","modified_gmt":"2026-03-04T13:46:43","slug":"what-is-a-passive-house-or-passivhaus","status":"publish","type":"post","link":"https:\/\/emecestudio.com\/en\/what-is-a-passive-house-or-passivhaus\/","title":{"rendered":"What is a passive house or Passivhaus?"},"content":{"rendered":"\n

A passive house<\/strong>, also known as a Passivhaus<\/strong>, is a home designed to maintain optimal thermal comfort throughout the year with very low energy consumption<\/strong>. This is achieved through a highly efficient design that maximizes passive resources (such as sun, orientation, and insulation) and minimizes the use of artificial heating and cooling. <\/p>\n\n

This type of construction responds to a growing need: to reduce energy consumption in buildings without sacrificing comfort<\/strong>. The Passivhaus standard, which originated in Germany in the 1990s, establishes specific technical criteria that guarantee this balance. <\/p>\n\n

What is a passive house?<\/h2>\n\n

A passive house<\/strong> is a home that meets the Passivhaus<\/strong> standard, which sets rigorous limits on energy demand, airtightness, and efficiency. The goal is for the building to thermally self-regulate<\/strong> without relying on conventional air conditioning systems. <\/p>\n\n

Unlike traditional houses, passive houses take advantage of climatic conditions and architectural design<\/strong> to stay cool in summer and warm in winter, using a fraction of the usual energy.<\/p>\n\n

What differentiates a passive house from other homes?<\/h2>\n\n
Characteristic<\/th>Traditional housing<\/th>Passive house (Passivhaus)<\/th><\/tr><\/thead>
Annual energy consumption<\/td>High<\/td>Very low<\/td><\/tr>
Thermal comfort<\/td>Variable, depends on equipment<\/td>Constant and natural<\/td><\/tr>
Air tightness<\/td>Low<\/td>High (no leaks)<\/td><\/tr>
Thermal insulation<\/td>Standard<\/td>Optimal, depending on climate<\/td><\/tr>
Ventilation<\/td>Natural or forced without control<\/td>Mechanical with heat recovery<\/td><\/tr>
Certification<\/td>Generally not certified<\/td>Passivhaus certification possible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n
\n\n

How does a passive house work?<\/h2>\n\n

A Passivhaus uses five key principles to achieve its efficiency:<\/p>\n\n

1. Efficient thermal insulation<\/h3>\n\n

Reduces heat loss in winter and overheating in summer.<\/p>\n\n

2. High-performance windows<\/h3>\n\n

Double or triple glazing with insulating frames and optimized orientation.<\/p>\n\n

3. Air tightness<\/h3>\n\n

Completely sealed structure, without unwanted air infiltration.<\/p>\n\n

4. Absence of thermal bridges<\/h3>\n\n

Elimination of areas where heat escapes or condensation is generated.<\/p>\n\n

5. Mechanical ventilation with heat recovery<\/h3>\n\n

System that renews the interior air by filtering particles and conserving heat.<\/p>\n\n

\n\n

How much energy does a passive house consume?<\/h2>\n\n

To be considered a certified Passivhaus, it must meet these criteria:<\/p>\n\n

    \n
  • Heating or cooling demand:<\/strong> \u2264 15 kWh\/m\u00b2 year<\/li>\n\n\n\n
  • Total primary energy demand:<\/strong> \u2264 60 kWh\/m\u00b2 year<\/li>\n\n\n\n
  • Airtightness (n50):<\/strong> \u2264 0.6 air changes per hour at 50 Pa<\/li>\n<\/ul>\n\n

    This represents a reduction of up to 90% in energy consumption<\/strong> compared to a conventional home.<\/p>\n\n

    \n\n

    Benefits of living in a passive house<\/h2>\n\n
      \n
    • Significant energy savings<\/strong>: very reduced heating and air conditioning bills.<\/li>\n\n\n\n
    • Thermal comfort all year round<\/strong>: stable temperatures without the need for complex systems.<\/li>\n\n\n\n
    • Improved indoor air quality<\/strong>: thanks to controlled ventilation with filters.<\/li>\n\n\n\n
    • Lower environmental impact<\/strong>: direct contribution to the reduction of CO\u2082 emissions.<\/li>\n\n\n\n
    • Higher market value<\/strong>: more attractive homes due to their efficiency and sustainability.<\/li>\n<\/ul>\n\n
      \n\n

      Is a passive house the same as an ecological house?<\/h2>\n\n

      No. Although they may coincide in some aspects, they are different concepts: <\/p>\n\n

        \n
      • An ecological house<\/strong> may use sustainable materials, but it is not necessarily energy efficient.<\/li>\n\n\n\n
      • A passive house<\/strong> must meet rigorous technical parameters of efficiency, measurable and certifiable, without necessarily having ecological materials.<\/li>\n<\/ul>\n\n

        Ideally, both approaches should be combined: a Passivhaus built with sustainable materials<\/strong>.<\/p>\n\n

        \n\n

        Examples of real passive houses<\/h2>\n\n

        1. Bahnstadt (Heidelberg, Germany):<\/strong>Complete neighborhood built under the Passivhaus standard. European reference. <\/p>\n\n

        2. Passivhaus Premium in Navarra (Spain):<\/strong>Self-sufficient single-family home, with integrated photovoltaic production.<\/p>\n\n

        3. Casa EntreEncinas (\u00c1vila, Spain):<\/strong>Example of adaptation of passive design to the continental climate, with official certification.<\/p>\n\n

        \n\n

        How to obtain Passivhaus certification?<\/h2>\n\n

        To certify a home as Passivhaus, you must:<\/p>\n\n

          \n
        1. Perform the design with tools such as PHPP<\/strong>.<\/li>\n\n\n\n
        2. Execute the work with specialized technical quality control.<\/li>\n\n\n\n
        3. Pass tests such as the Blower Door Test<\/strong> to measure airtightness.<\/li>\n\n\n\n
        4. Submit the documentation to the Passivhaus Institut<\/strong> or accredited certifiers.<\/li>\n<\/ol>\n\n
          \n\n

          Passive houses represent a viable, proven, and sustainable solution to the growing need to reduce energy consumption and mitigate climate change. They offer a comfortable, healthy, and economical living experience, while raising the quality standard of modern construction. <\/p>\n\n

          The concept of Passivhaus is not a trend, but a logical evolution in responsible architectural design<\/strong>. More and more professionals, developers, and families are betting on this housing model as a guarantee of efficiency, health, and sustainability. <\/p>\n","protected":false},"excerpt":{"rendered":"

          A passive house, also known as a Passivhaus, is a home designed to maintain optimal thermal comfort throughout the year with very low energy consumption. This is achieved through a highly efficient design that maximizes passive resources (such as sun, orientation, and insulation) and minimizes the use of artificial heating and cooling. This type of […]<\/p>\n","protected":false},"author":1,"featured_media":2320,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,33],"tags":[],"class_list":["post-2310","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-articles","category-architecture-and-sustainability"],"_links":{"self":[{"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/posts\/2310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/comments?post=2310"}],"version-history":[{"count":1,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/posts\/2310\/revisions"}],"predecessor-version":[{"id":2322,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/posts\/2310\/revisions\/2322"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/media\/2320"}],"wp:attachment":[{"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/media?parent=2310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/categories?post=2310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emecestudio.com\/en\/wp-json\/wp\/v2\/tags?post=2310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}