| 摘要 |
A fire-resistant spacer for separating tiled or slatted roof structures of adjoining buildings or building sections comprises at least one sheet of intumescent material (1) and at least one sheet of deformable material (2) sealed within an envelope of flexible material (3), and a rib (4) of flexible cellular fire-retardant foam or sponge in contact with an exposed surface of the envelope (3) between opposed side edges thereof. The arrangement is such that in use the sides of the sealed envelope (3) in which the intumescent material is present extend to positions at which they can be secured to neighbouring roof structure (preferably joists) of adjoining buildings or building sections with the rib (4) extending between these neighbouring structures and to a height at least equal to the height of neighbouring tile battens (6) of the roof structures, the sealed envelope (3) and rib (4) being subsequently covered by roof tiles (8).
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