Knowledge Center
This knowledge center answers the most common legal, technical, and code-related questions about European windows in the United States. It is designed for homeowners, contractors, and professionals looking for clear and reliable information.
Legal & Code Compliance Guides
- Are European Windows Legal in the United States?
- What Is NFRC Certification for Windows?
- Do European Windows Meet U.S. Energy Codes?
Technical Window Systems Explained
- Tilt & Turn Windows Explained
- European vs American Windows (Single-Hung)
- Triple Pane Windows in U.S. Climate