What does Performance Grade mean for windows?
Performance Grade is a standardized rating achieved when a product passes required NAFS performance tests for its product type and performance class.
What is included?
- Air leakage resistance
- Water penetration resistance
- Uniform load deflection testing
- Uniform load structural testing
- Operating force, where applicable
- Forced-entry resistance, where applicable
This is a demonstration of content architecture, not an official Andersen page.