In summary, glass thickness is an indispensable, but not solitary, factor in determining fire resistance. It works in concert with the number of glass layers and the performance of intumescent interlayers within a certified system. The ultimate fire rating is a product of this sophisticated engineering balance. Understanding this relationship allows architects and specifiers to make informed decisions, relying on experts like PYRONANO to provide products where thickness is precisely calibrated to deliver guaranteed performance for each unique application.