For more information on specific certification criteria for building components, see the tabs below.
Fenestration (Transparent Building Envelope)
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Transparent Components/Window Certification
Windows facing the sun gain more solar energy than they lose by heat transmission.
- Windows
- Window frames
- Frames for fixed glazing
- Sliding doors
- Entry doors
- Curtain wall systems
- Sloped curtain wall systems
- Roof windows
- Skylights
- Glazing
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Sun protection
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Building Assemblies (Opaque Building Envelope)
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Construction systems
Well insulated walls are essential for keeping the warmth inside – or outside when it's hot. Construction systems
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Attic staircase
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Facade Anchor
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EnerPHit insulation systems (for retrofits)
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Airtightness systems
Mechanical, Electrical, Plumbing (Building Services)
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Building Service Components
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Small ventilation systems (Capacity ≤ 600m³/h)
The ventilation system ensures that fresh air gets into the house while keeping the heat inside with the help of an air exchanger.
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Large ventilation systems (Capacity > 600m³/h)
The ventilation system ensures that fresh air gets into the house while keeping the heat inside with the help of an air exchanger. (Detailed testing protocols available to manufacturers on request [email protected])
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Single-room ventilation
The ventilation system ensures that fresh air gets into the house while keeping the heat inside with the help of an air exchanger. Requirements and testing procedures for single-room ventilation
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Classification of filter efficiencies according to ISO 16890
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Compact heat pump units
Compact heat pump units provide hot water and heating in combination with a ventilation system that ensures that fresh air gets into the house while keeping the heat inside with the help of a heat exchanger. Compact units
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Air to air heat pumps
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Warm water heat recovery
A certified drain water recovery can reduce the amount of heating energy for showering by about 30 to 60 %. drain water heat recovery