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Quality assurance in Passive House projects

We offer various quality assurance measures in order to ensure successful project planning for your Passive House building.

We provide advice for the conception, planning and implementation of your project in order to be able to make systematic use of planning opportunities. Planning variants of the resulting building are continuously verified using the PHPP so that the required specific values can be achieved (energy balance 15 kWh/(m²a) and heating load calculation 10 W/m²). On site we carry out BlowerDoor tests and thermographic imaging  in order to verify the quality of the external envelope.

Our services

Advice from the outset   Energy balance and heating load calculation using the PHPP


On site verification: thermographic imaging and Blower Door tests
Passive House in Social Media


12th Passive House Days
13 to 15 Nov 2015, worldwide
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22 to 23 Apr 2016, Darmstadt
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Component Database

Passive House
Component Database
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New developments

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Seals for Certified Passive House Components
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PHPP 8 (2013)
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EnerPHit - PHI certification for thermal insulation systems
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EnerPHit -
PHI certification for retrofits
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Component Database
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Wall plaque
for certified Passive Houses
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Press releases

Latest press releases

Research & Literature

Passive Houses for different climate zones

Retrofits with Passive House components -
EnerPHit Planner Handbook
(in German)


Passive House Retail Stores now out
Overview of contents
(in German)

PHI Literature

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