Banner

Windows for Passive Houses

What should I bear in mind? What is the ideal window

Houses to be constructed: Passive houses are buildings that can do without conventional heating; they are heated passively by solar energy entering e.g. through large windows especially on the building’s south side. Windows on the north side are either small or there are no windows at all to minimize heat loss. Solar gains on this side of the building are usually negligible. There are different regulations for the construction of window elements for passive houses that apply. KfW for example only requires a maximum Uw value of 0.8 W/m²K to grant funding, while the Passivhaus Institut Dr. Feist lays down requirements on single components, which generally increases the price of window elements. The German institute for window technology ift recently published a guideline for passive house windows requiring nearly the mean value of the above mentioned and by this means presents a reasonable benchmark for future constructions. Window fabricators should pay close attention to the requirements stipulated in the invitation to tender as the building components must meet these specific requirements regardless of other standards that might be met.

Existing building stock: Existing buildings refurbished to passive house standards are still relatively rare. However, the German government wants passive houses in the existing building stock to become the standard in the long and medium term. One of the major challenges will certainly be the individual constructional situation of the existing buildings, to which current products for renovation have to be adapted. aluplast is one of the first in the window sector to offer a window element of 70 mm profile depth certified by ift to meet the passive house standard.


Recommendations passive house according to Dr.Feist

  • energeto® 8000

    energeto® 8000

    energeto® 8000 with a profile depth of 85 mm is specially designed for the new construction segment and convinces with top insulation values. The 85 mm system in Classic-line design with its clear straight lines is a real eye-catcher and, with an unparalleled Uf value of 0.94 W/m²K, an exemplary energy saver.   


Recommendations passive house according to ift Rosenheim

  • energeto® 4000

    energeto® 4000

    The backstop gasket system energeto® 4000 with a profile depth of 70 mm is mostly used in the renovation sector and allures with smooth, filigree profile lines.   

  • energeto® 5000

    energeto® 5000

    The energeto® centre gasket system with a profile depth of 70 mm is irreplaceable especially in the renovation market.   

  • energeto® 8000

    energeto® 8000

    energeto® 8000 with a profile depth of 85 mm is specially designed for the new construction segment and convinces with top insulation values. The 85 mm system in Classic-line design with its clear straight lines is a real eye-catcher and, with an unparalleled Uf value of 0.94 W/m²K, an exemplary energy saver.   

  • IDEAL 8000®

    IDEAL 8000®

    85mm profile depth - energetically and visually at the highest level   

 

aluplast worldwide

aluplast weltweit
 

contact

aluplast GmbH 

Auf der Breit 2
D-76227 Karlsruhe
Tel. +49 721 47171-0
Fax +49 721 47171-999
sales.international@aluplast.de

 
 
 

quick links

quick access to the most important information

technical glossary

colour and design

innovations

aluplast worldwide

 
aluplast worldwide

contact

aluplast GmbH
Auf der Breit 2
DE-76227 Karlsruhe
Tel. +49 (721) 47171-0
Fax +49 (721) 47171-999
sales.international@aluplast.de