NGA FB34-12 (2023) PDF

Furniture, fabrics, and other interior fixtures, as well as valuable paintings and papers, will fade over time. The main contributors to fading are ultraviolet (UV) radiation, visible light, absorbed heat and moisture. Most laminated glass interlayers are formulated to screen out UV radiation below 380 nanometers (nm). The UV filtering characteristics in the laminate interlayer enable laminated glass to reduce the rate of fading and deterioration of these materials. The Technical Services Division of the National Glass Association (NGA) has produced this Glass Technical Paper solely for informational purposes. This Paper was developed by dedicated member volunteers and subject matter experts. This document was originally published in 2012. This version of the document was updated and published in April 2023.