Windows requirements for Passivhaus projects - Information Hub Green Building Store

PHPP for Passivhaus projects

PHPP-ready data

  • ULTRA (outward) PHPP-ready spreadsheet – download
  • ULTRA (inward) PHPP-ready spreadsheet – download
  • PROGRESSION PHPP-ready spreadsheet – download
  • PERFORMANCE (outward)  PHPP-ready spreadsheet – download
  • PERFORMANCE (inward)  PHPP-ready spreadsheet – download

Passivhaus requirements

Passivhaus design in Germany generally requires whole window U values of significantly less than 0.8 W/m2K*

Passivhaus suitable

Green Building Store offers the following options, which might be suitable for  Passivhaus projects (dependent on modelling in PHPP)::

  • 0.75 W/m2K – ULTRA  (Passivhaus compatible, cost-effective, outward and inward opening, 98mm profile)
  • 0.85 W/m2K  – PERFORMANCE (Passivhaus compatible, cost-effective, outward and inward opening, 78mm profile)

Passivhaus certified range

Passivhaus institut logo

  • 0.68  W/m2K – ULTRA  (Passivhaus certified, outward opening, 98mm profile)
  • 0.68  W/m2K – PROGRESSION (Passivhaus certified A-rated component, inward opening,  narrow sightlines)

*It is not necessarily required to use a Passivhaus Institut certified window when designing or certifying a Passivhaus.  The actual requirement for Passivhaus Institut certification is either that the Uw value should be < 0.8 W/m2K when modelled with glazing Ug of 0.7 W/m2K, or that the Uw installed should be < 0.85 W/m2K with the same glass, and including the linear thermal bridging coefficient of the installation.

 

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