| 摘要 |
The invention relates to a twin skinned firewall comprising a top hat shaped beam fixed to the external side of a liner sheet via a bracket that is also top hat shaped, but smaller and deeper than the top hat shaped beam. The bracket and beam are secured together by fixings, preferably with a thermal pad inserted between the bracket and the beam to reduce heat transfer between the two. Strips of galvanised steel run between the top hat beams and are secured to the beams by clips. The strips are fixed so as to be a minimum distance from the liner sheet and will support glass fibre insulation such that it does not touch the liner sheet when compressed by exterior cladding sheets. An air gap may be therefore be maintained between the liner sheet and insulation so that the glass fibre does not melt. |
