We ensure as many of our products as possible meet the stringent requirements of a variety of green building certification systems, to help you achieve your sustainability goals.

Living Building Challenge

All our fiberglass windows, as well as our Cascadia Clips, are part of the Living Building Challenge Declare Program. The Declare Program ensures material transparency and a lack of harmful chemicals. Our fiberglass windows are Red List Free, and the Cascadia Clip is Red List Approved.



The newest version of LEED includes the Declare program in its material transparency credits, so Cascadia products contribute directly to those credits. They also contribute massively to energy-related credits, by allowing much less heat loss than traditional products through the building envelope.


Mindful Materials

Mindful Materials is a North America-wide platform to improve material transparency in building products, to give designers and architects a list of the best products to use for highly efficient and sustainable buildings.


Passive House

Our Universal Series windows are Passive House International and Passive House Institute US (PHIUS) certified.

For energy modelers using the PHP software, we are please to provide ISO Standard thermal modelling data for your use with our Classic Series Windows and Doors.  For this information, please see our Energy Ratings page.


Passive House Canada

Cascadia is a proud member of Passive House Canada.