The timber for the screen shall have a minimum density of 510kg/m3 with a minimum section size of 95mm by 45mm. The beads shall be a minimum size of 25mm wide by 15mm high, chamfered by 20o and fixed using steel pins or screws 50mm long.
The fixings shall be at a maximum of 150mm centres.
The glass shall be glazed into the screen using FireGlaze G30 strip 15 by 2mm intumescent material, between the glass and the beads. Hardwood or non-combustible material setting blocks shall be used to achieve the required edge cover.
This Certificate of Approval relates to apertures of the sizes and using the glasses shown in the table below, when used in conjunction with FireGlaze G30 Strip glazing method: