B 130
CAP. 123]
Building (Construction) Regulations
(1985 Ed.
[Subsidiary]
TABLE F
GLAZING
Construction and Materials
Minimum thickness of glazing in mm for period of
4 2 1 1 hours hours hour hour
1.
Glass, in direct combination with metal, the melting point of which is not lower than 980°C in squares not exceeding 0.15 m2 in area.
Thickness of Glass
Glass reinforced with wire not less than 0.5 mm in diameter laid to a square mesh measuring 12.5 mm from centre to centre of wire, and electrically welded at the intersections, or laid to a hexagonal mesh measuring 25 mm across the flat sides.
Thickness of Glass
6
In windows, doors, borrowed lights, lanterns and skylights, glass complying with paragraph 1 or 2 of this Table shall be fixed with wood or metal fillets in panels not exceeding 0.4 m2 in area secured to frames of metal (fixed shut) having a melting point not lower than 980°C or in timber frames (fixed shut) having a minimum thickness of 45 mm.
3. Glass Bricks or Blocks.
In panel not exceeding 3.5 m2 in area with expansion joints not less than 8 mm per metre width of the panel at each side of the panel and not less than 8 mm per metre of the height of the panel at the top of the panel.
95
TABLE G
DOORS
Finished Minimum overall thickness in mm for period of
Construction and Materials
4 2 1 1 hours hours hour hour
Solid timber with timber door stops continuous round the sides and the head of the frame and having a dimension parallel to the face of the door of not less than 25 mm and at right-angles to the face of the door of not less than 36 mm
Fire-check-flush doors complying with the appropriate provisions of BS 459: Part 3-1951...
44
4
44