Technical Booklet E Fire Safety·Page 88·3.15
Windows and internal glazing in circulation spaces and rooms
Windows in external walls of circulation spaces and all internal glazed areas must meet minimum fire classifications per Table 3.1. Windows in external walls of rooms may use thermoplastic TP(a) rigid material.
A window in the external wall of a circulation space and all internal glazed areas should be glazed with a material having a classification not lower than that given in Table 3.1.
A window in an external wall of a room may be glazed with a thermoplastic material classified as a TP(a) rigid product.
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