Passive House Institute

– certified solutions for passive construction

Passive construction is one of the key directions in modern architecture. Its fundamental principle is to minimise a building’s energy demand for heating and cooling while maintaining a high level of user comfort and indoor air quality.

Products certified by the Passive House Institute meet stringent requirements for parameters that are crucial to building energy efficiency, particularly airtightness and properties affecting the correct performance of the building envelope.

What does Passive House Institute certification mean?

Passive House Institute (PHI) certification is one of the most recognised confirmations of quality for solutions used in passive and energy-efficient construction. Certification is carried out by the Passive House Institute, an independent research institute based in Darmstadt, Germany.

Certified products undergo detailed assessment of parameters relevant to the passive building standard. This enables architects, contractors and investors to select solutions with verified performance that support reduced energy losses, high building envelope airtightness and a comfortable indoor environment.

Solutions for passive houses

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Eurovent® system products certified by the Passive House Institute

The Eurovent® range includes products certified by the Passive House Institute, whose performance has been verified for use in energy-efficient and passive construction:

Eurovent® CLIMA X – an active, three-layer vapour control membrane reinforced with PE mesh and featuring a variable Sd value. Eurovent® CLIMA X has received Passive House Institute certification in airtightness class phA.

Eurovent® UNISAN – a universal adhesive tape for membrane overlaps and connections, designed for energy-efficient construction. Certified Passive House Institute component.

Eurovent® HYDRAL – a single-sided adhesive tape made of water-resistant paper with an acrylic dispersion adhesive. Designed for sealing gaps and connections between vapour control membranes and wood-based materials or building boards. Certified Passive House Institute component.

Eurovent® MULTI – a solvent-free, highly flexible, stretchable and ageing-resistant universal adhesive and sealing compound. Ideal for airtight bonding of vapour control membranes and films as well as expansion joints. Certified Passive House Institute component.