A building standard that is truly energy efficient, comfortable, economical and environmentally friendly; Passivhaus is not a brand name, but a construction concept that is open to all – and has proven itself in practice.

Energy Efficiency

Passivhaus properties achieve enormous energy savings through particularly energy-efficient components and ventilation technology. Waste heat, from appliances and even our bodies, is easily lost in conventional homes through windows and even walls. However, in a Passivhaus this heat does not escape thanks to incredibly airtight and insulated components such as Windows, Doors and Curtain Walls. Heat is then transferred throughout the building via an energy-efficient motor and ventilation system, which evenly distributes the air from each room through a heat exchanger. During warmer months, Passivhaus properties make use of passive cooling techniques such as strategic shading to keep you comfortable.

Environmentally Sustainable

The Passivhaus standard, promoted by the European Parliament, and supported by the Building Research Establishment, achieves a ‘nearly’ zero waste-energy rating for new builds and can be fully powered by renewable energy sources. Passivhaus components make sustainable construction economically affordable for all.

Comfortable Living Environment

One of the most noticeable features of a Passivhaus is the use of expansive windows, letting natural light inhabit all spaces and rooms. Triple-Glazed Passivhaus Windows are feel-good guarantors in winter, insulating the property nearly as well as the walls. The impressive insulation properties result from highly developed thermal insulation glazing and special window frames, with the inner surface temperature never dropping below 17°C, even in frosty conditions. Furthermore, at least 30 cubic meters per hour of fresh, dust and pollen-free air flow through the house via the ventilation system. The oxygen supply remains constant regardless of the season and there are no drafts, cold wall surfaces or windows, so the living environment remains comfortable. Because of this moisture and mildew are virtually eliminated; thus, massively extending the lifespan of internal walls, features and appliances.


Due to the almost complete energy efficiency, Passivhaus properties require only 15-kilowatt hours per square meter over a year. Converted to the price of necessary fuel, Passivhaus homes use less than 1.5 l of oil or 1.5 m3 of gas to heat one square metre of living space for a year – substantially less than typical “low-energy” buildings. However, many Passivhaus properties do without fossil fuels to start with – often opting for renewable energy sources.

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Solus Architectural Glazing LTD Unit 51, Basepoint Business Centre Metcalf Way Crawley West Sussex, RH11 7XX