56
Use of fire doors in buildings -
General requirement of fire doors in individual  occupancies
3.4.9.2.2 - Boiler room 
a) The boiler room shall be of 180 minutes and the entry door shall be standby supplies like DG room if 
it is installed within the building it should have the wall and door of minimum 120minutes rating. 3.4.10 - Glazing Sub clause (3.4.10.1
a) Glazing assembly and its rating shall be as per the type of construction and other provisions of this 
part
b) The use of glass shall not be permitted for enclosures of exits and exit passageway. 3.4.12.