Technical Booklet E Fire Safety·Page 75·2.85
Fire resistance of escape route enclosures
Walls, partitions, enclosures and roofs forming part of escape routes must meet specified fire resistance performance standards from Tables 4.1 and 4.2, with limits on uninsulated glazing per Table 2.8. Fire doors must be self-closing with appropriate fire resistance performance from Table 4.5.
Details of fire resistance test criteria and standards of performance are given in Section 4. All walls, partitions and other enclosures (including roofs that form part of an escape route) required to have fire resistance to meet the provisions of this Section should have the appropriate performance given in Tables 4.1 and 4.2. Where glazed elements in such enclosures are only able to satisfy the relevant performance in respect of integrity (i.e. uninsulated glazing), their use should be limited in accordance with Table 2.8. All doors required to have fire resistance to meet the provisions of this Section should have the appropriate performance given in Table 4.5, should be self-closing and the extent of any uninsulated glazing should be in accordance with Table 2.8.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet E - Fire Safety.pdf