Pilkington’s Pyrodur is an annealed laminated glass construction. Pyrodur has been one of the leading products specified by Architects for many years and the intumescing interlayer(s) offer comfortably large pane sizes for 30 and 60 minutes integrity. The external range offers a PVB laminate in its construction allow it to be used externally, and inherently offers a P1A security rating suitable for PAS24 assessment.