This part of BS 5588 provides guidance on the incorporation of one or more atria into new and existing buildings. The primary objective of the code is to ensure that the incorporation of an atrium into a building does not present an increased risk to life as a result of fire and smoke spread.
This code is concerned only with those additional measures that may be required to compensate for any increased risk resulting from the inclusion of an atrium within a building. It is not intended to provide a fire-engineered solution for any particular design.
The principles presented in this standard are applicable to all building types containing atria other than:
prisons or other buildings intended for the confinement of persons;
auditoria in theatres or similar places of entertainment, for which guidance is given in BS 5588-6;
malls in shopping complexes for which guidance is given in BS 5588-10.
small premises covered in Clause 10 of BS 5588-11;
buildings in occupancy categories A & B (see 7.2) containing a two-storey atrium, with one of the two storeys being at ground level, which are designed for simultaneous evacuation with storey exits remote from the atrium.
This code deals only with those aspects of design, construction and management that relate specifically to the presence of an atrium within the building. Other aspects of fire safety design should be followed in accordance with appropriate legislation and codes of practice.
A range of design solutions for atrium buildings presented in this code is based on four different occupancy types:
awake and familiar with building layout;
awake and unfamiliar with building layout;
sleeping risk; and
significant number of people requiring medical or nursing care.
In addition to making recommendations intended to establish the basic requirements for life safety, thi...