Roof and Wall - Lane Roofing

4 Hour
15 Minutes Insulation 4 Hour Integrity
Structural Liner Tray
This system is intended for use
as an external wall, sited at least
1 metre from a relevant boundary.
It is not suitable for partitions.
Assessment of fire resistance refers
to cladding system which must be
supported at base or by a fire rated
eaves beam. The assessment refers
to non-loadbearing walls. The
cladding system carries no vertical
load other than its own dead weight.
Installation of this system to be
in accordance with approved
document B (Fire Spread) in the
Building Regulations 2000.
Liner Tray
Corus Panels and Profiles HL600/130
Structural Liner Tray.
Thermal Break Strip
Rockfibre fire barrier strip
50mm x 35mm 240kg/m 3 density.
Fastener
5.5mm diameter by 45mm long selfdrilling
fastener e.g. SD3-T15-5.5x45.
Side Stitching
Side stitching in web at tray interlocks
400mm maximum centres.
Insulation
Rockfibre insulation, minimum
160mm thick 23kg/m 3 nominal density.
Outer Cladding
Corus Panels and Profiles External
Cladding 0.5mm thick steel.
Warrington Fire Research Centre number
C54353.
System assessment to comply with BS476
part 22.1987 in relation to internal fire.
Stability = 240 minutes
Integrity = 240 minutes
Insulation = 15 minutes
The Building Regulations 2000 Approved
Document L2 – April 2002
The above achieves 0.35 W/m 2 K in
accordance with Approved Document L2
April 2002.
Firewall Systems 23