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Passive house

Passivhaus "Melone", gedämmt mit Austrotherm EPS F-PLUS FassadendämmplatteThe passive house concept is the building style of the future and is becoming increasingly important. It requires no active heating system, offers extremely low energy costs, and above all - total comfort in winter and summer.

These are houses with no active heating system! Pleasant warmth, a perfect room climate and a wonderful ambiance are guaranteed. For today’s builders, we recommend taking advantage of these benefits for a newly built and economically run home

The most important passive house criteria are;

1. Perfect wall; roof and floor insulation
2. No heat bridges
3. Air compactness
4. Comfort ventilation

A maximum annual heating requirement of ≤ 15 kWh / (m² a) - equivalent to about 1.5 liters of oil / m of living space.

The passive house standard of 15 kWh / m² results primarily from the basic economic consideration of making a separate heating system unnecessary as the existing air supply system already transports the necessary heat. The remaining minimum ventilation passive house heat losses can be almost completely offset by free "passive" energy contributions.

Passive energy constributions:
Austrotherm EPS, XPS, Dämmstoffe Solar radiation through windows and other transparent surfaces
Austrotherm EPS, XPS, Dämmstoffe Heat from lighting and electrical appliances as well as
Austrotherm EPS, XPS, Dämmstoffe Body heat of people in the building
Passivhaus in KärntenComfort ventilation:
The goal is to keep pollutants and impairments as low as possible

Austrotherm EPS, XPS, Dämmstoffe At least 30 cubic meters of fresh air per hour are required for each person during normal operation.
Austrotherm EPS, XPS, Dämmstoffe Comfort ventilation systems meet these requirements which serve to increase comfort and to ensure hygienic air flow. A heat exchanger also saves energy.
Austrotherm EPS, XPS, Dämmstoffe Less dust pollution
Austrotherm EPS, XPS, Dämmstoffe No impairment of pollen allergy.
Austrotherm EPS, XPS, Dämmstoffe Odours and cigarette smoke are sucked out and not spread throughout the house.
Austrotherm EPS, XPS, Dämmstoffe No drafts

If all criteria (wall, roof and floor insulation, thermal bridges, air compactness, excellent comfort ventilation) are satisfied, it may even be possible to do without a separate heating system.

Wall; roof and floor insulation:
Example: a cellar under a house with  basement area which is not permanently inhabited:

Austrotherm EPS, XPS, Dämmstoffe Perimeter insulation with 16 cm Austrotherm XPS TOP P
Austrotherm EPS, XPS, Dämmstoffe Basement ceiling insulation with 20 cm Austrotherm EPS W20-PLUS Dämmplatten
Austrotherm EPS, XPS, Dämmstoffe Wall insulation with 20 cm Austrotherm EPS F PLUS, (the grey insulation board) reaches a 23% better insulation than conventional polystyrene

Perfect roof insulation with overall 30cm thickness, either with Austrotherm EPS KLEMMFIX inside; or Austrotherm EPS Aufsparrendämmung outside.

The window lintel:
Austrotherm Architectural elements are used for the best bonding in windows and doors. This results in appropriate thermal insulation and light increase of 15%. Even more attractive window architecture is achieved thanks to a variety of design options.

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