Certification
Over twenty years of experience demonstrates that the high levels of comfort and energy savings associated with the Passivhaus Standard is achieved through independent quality testing. All certified Passivhaus buildings undergo a rigorous compliance process. Certification is also available for specific components, Designers/ Consultants & Tradespeople.
PROJECTS I PEOPLE I PRODUCTS
 Projects
All proposed Passivhaus designs must undergo energy modelling conducted via the Passivhaus Planning Package (PHPP.) Tests ensure these targets are met, completing the quality assurance process. A certificate is only issued if the exactly defined criteria have been met without exception. A slightly relaxed standard has been created for retrofit projects - EnerPHit. Learn more about the different classes, Plus & Premium, which take into account renewable energy generation, and the certification process for Passivhaus buildings.
 
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 People
Designers: Certification for designers/ consultants who have the expertise to deliver Passivhaus buildings. The qualification covers training on PHPP, a design tool used to inform the design process and to assess or verify compliance with the Passivhaus Standard. If you can't find a UK consultant via our members map - check a list of international certified designers here. Join an upcoming training courses to become certified designer yourself.
Tradespeople: Contractors have developed their basic building knowledge & understand key Passivhaus principles such as airtightness. If you can't find a UK contractor via our members map - check a list of international certified tradespeople here. Join an upcoming training courses to become certified tradesperson yourself.
Certifiers: To achieve certification, all Passivhaus projects must be signed off by an independent certifier. These organisations must be separate to the main design team and provide impartial verification that all Passivhaus criteria has been satisfied. More on this below.
  
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 Products
Certified Passivhaus components have undergone independent uniform testing. This allows useful quick comparisons and eases the task for designers to confidently specify high-quality, energy-efficient products that will work best in their climates. Check the database of certified Passivhaus components.
  
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Building Certifiers
Passivhaus certifiers have been internationally accredited by the Passivhaus Institute (PHI) to assess and issue the Passivhaus building certificates (Classic, Plus & Premium) and the EnerPHit building certificate for retrofit projects anywhere in the world. Details of PHT members & partners who provide building certification in the UK can be found below:
Based in the UK
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International certifiers
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Further Information
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Supplementary guidance to the criteria for the Passivhaus published by the Passivhaus Institute
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To find out more about the training & software available, please download this certification guide produced by the Passivhaus Institute.
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