13.—(1) Where necessary in order to ensure the safety of relevant persons in respect of harm caused by fire, the person with duties under Article 25 or 26 shall ensure that routes to emergency exits from relevant premises and the exits themselves are kept free from obstruction at all times.
(2) The following requirements shall be complied with in respect of relevant premises where necessary (whether due to the features of the relevant premises, the activity carried on there, any hazard present or any other relevant circumstances) in order to ensure the safety of relevant persons in respect of harm caused by fire:–
(a)emergency routes and exits shall lead as directly as possible to a safe area beyond the relevant premises;
(b)in the event of danger from fire, it shall be possible for persons to evacuate the relevant premises as quickly and as safely as possible;
(c)the number, distribution and dimensions of emergency routes and exits shall be adequate having regard to the use of, equipment contained in, and the dimensions of the relevant premises and the maximum number of persons who may be present there at any one time;
(d)emergency doors shall open in the direction of escape;
(e)sliding or revolving doors shall not be used for exits specifically intended as emergency exits;
(f)emergency doors shall not be so locked or fastened that they cannot be easily and immediately opened by any person who may require to use them in an emergency;
(g)emergency routes and exits shall be indicated by signs; and
(h)emergency routes and exits requiring illumination shall be provided with emergency lighting of adequate intensity in the case of failure of their normal lighting.