A listed and labeled glazing product or assembly evaluated for a defined fire-protection or fire-resistance function, duration, installation, and set of limitations.
GlassRenu · Educational illustration
Meaning and boundaries
Fire-protection-rated and fire-resistance-rated products are not interchangeable, and a fire rating does not automatically establish human-impact safety performance.
Why it matters in glass restoration
Surface modification, label damage, edge work, film application, product substitution, or unapproved repair can affect identification or the listed assembly.