Passivhaus Affiliate

Standard Members

Icynene Inc


The Icynene Insulation System is a soft, flexible, breathable, foam insulation and air barrier. Sprayed as a liquid Icynene expands to 100 times its initial volume in seconds. Icynene’s unique formulation sets it apart from other insulation products offering many advantages over traditional insulation materials and more modern alternatives. Icynene contains no HFC’s, CFC’s HFA or HCFC’s and it remains soft and flexible accommodating any normal expansion contraction or movement within a building. The Icynene Insulation System is 100% water blown containing no toxic chemicals and will deliver the performance you can count on for a lifetime of savings and comfort.


Insulated Floors Ltd


Isoquick Foundations are the perfect start for any Passivhaus scheme. Isoquick is a patented, Passivhaus certified, and engineered solution to providing highly insulated and thermal bridge free building foundations. Designed to work with a range of walls systems, including timber frame, ICF, masonry with EWI and Porotherm, Isoquick is equally suited to large commercial projects to one off units. For more information and updates visit us on:


Integrity Buildings limited



Internorm Windows UK Ltd


Internorm is the largest window brand in Europe with over 20 million window units produced. Internorm is not just the market leader, but the knowledge leader due to its extensive experience since 1931. As the only window brand in Europe with nine passive house certificates, Internorm represents the leading expertise in energy efficient windows and doors, and is the market leader in Europe for highly thermally insulating window systems.