Technical Booklet E Fire Safety·Page 145·5.18
Method 3 (Enclosing Rectangle) - Building Separation Requirements
This method establishes minimum separation distances between buildings or compartments and a reference plane, based on the size of unprotected areas in external walls. It applies to buildings and compartments of any purpose group.
This method may be used for buildings and compartments of any purpose group. A building or compartment should be so situated that no point on its relevant boundary is –
(a) between the relevant plane of reference and the side of the building;
and
(b) closer to the relevant plane of reference than that given in Table 5.4 for the appropriate purpose group, dimensions of enclosing rectangle and unprotected area percentage.
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