• Passive-House certified thermal performance
• LBC compliant (Red List Free materials)
• Commercial-grade strength and sizes
Cascadia fiberglass windows & doors offer an ideal combination of advanced technology and flexible design with superior life cycle performance. Diverse and custom built to fit your design and budget. Backed by expert technical support. Fiberglass frames and high performance glazing. The most energy efficient windows in the industry, meet or exceed Energy Star® criteria with significant energy savings and LEED potential.