ABSTRACT
B4 requires that the external walls (including the windows and doors) resist the spread of fire over the walls and from one building to another; F1 requires that there be adequate means of ventilation provided for people in the building; J1 is concerned that there is an adequate supply of air to heat producing appliances for combustion and for the efficient working of the chimney; L1 states that reasonable provision be made for the conservation of fuel and power in buildings; and N1 is concerned that glazing with which people are likely to come into contact while in passage about the building, should either break safely, resist breaking or be protected from impact. D8.1
