What certificates do aluminum alloy doors and windows have?

NFRC Certificate (National Fenestration Rating Council):

Purpose: The NFRC certificate serves as a national certification for assessing and labeling the performance of windows and doors. NFRC aims to provide reliable information about the performance of fenestration products, assisting consumers and building professionals in making informed choices.
Performance Metrics: NFRC certificates typically include a range of metrics related to window and door performance, such as U-factor (thermal transmittance), Solar Heat Gain Coefficient (SHGC), Visible Transmittance (VT), Ultraviolet (UV) transmittance, etc. These metrics offer insights into the energy efficiency, insulation, and light transmission properties of windows and doors.
Compliance Standards: NFRC certification ensures that windows and doors comply with specific national standards and regulations, enabling consumers to compare the performance of different products.
NAMI Certificate (North American Fenestration Standard/Specification for Windows, Doors, and Skylights):

Purpose: The NAMI certificate establishes standards and specifications for windows, doors, and skylights in the North American region. NAMI aims to ensure that these products meet relevant performance and safety standards.
Assessment Criteria: NAMI certificates may encompass evaluations of various aspects of window and door manufacturing, including processes, materials, and installation. This helps ensure that products adhere to industry standards throughout the design, manufacturing, and installation phases.
Certification Process: NAMI certification is typically conducted by independent certification bodies responsible for verifying whether a manufacturer’s products meet NAMI standards.

NFRC and NAMI certificates are designed to guarantee the quality, performance, and safety of window and door products. Consumers and building professionals can rely on these certificates to gain insights into specific products’ performance characteristics, facilitating informed decisions in purchasing and design.