Thermal optimisation of building products
The Passive House Institute provides consultancy on the thermal optimisation of building products from the very beginning of the process through to pontetial Passive House Component Certification.
In addition to other tools, we make use of two and three dimensional as well as dynamic thermal flow analyses.
Example 1: Insulated window frame
![]() |
![]() |
|
Frame profile | Timber exterior insulation finishing system (EIFS) | insulated PVC profile |
Frame U-Value Uf [W/(m²K)] | 0.62 | 0.69 |
Elevation width [mm] | 131 | 120 |
Edge bond ψg [W/(mK)] | 0.031 | 0.029 |
Glas rebate d [mm] | 26 | 30 |
Glazing (44 mm) Ug [W/(m²K)] | 0.70 | 0.70 |
Example 2: External wall connection to unheated cellar ceiling
U-Value (External wall) = 0.12 W/(m²K) Thermal bridge coefficient: |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Next Courses |
PHPP Expert
Passive House Designer / Consultant
Construction Verifier
Site Supervisor
read more
e-learning
Events |
iPHA Webinar | "Passive House for Everyone: educating a new generation"
October 11, 2023
read more
Passive House Open Days
10-12 Nov 2023, worldwide
read more
5. + 6. April 2024 | Innsbruck, Austria
read more
Component Database |
Passive House
Component Database
read more
Projects |
New developments |
designPH
read more
NEW: PHPP 10 (2021)
read more
Seals for Certified Passive House Components
read more
Passive House Classes,
Classic, Plus, Premium
read more
EnerPHit -
PHI certification for retrofits
read more
Wall plaque
for certified Passive Houses
read more
Press releases |
Research & Literature |
Passive Houses for different climate zones
more
Retrofits with Passive House components -
EnerPHit Planner Handbook
(in German)
Passive House Retail Stores now out
Overview of contents
(in German)