Roof and Wall - Lane Roofing

4 Hour
30 minutes Insulation 4 Hour Integrity
Double Skin Firewall with Instaloc 40 Spacer System
& Rockfibre Quilt (vertical outside rail)
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.
Insulation
Two layers of 80mm thick Rockfibre
insulation quilt. 23kg/m 3 nominal density.
Lining Panel
Corus Panels and Profiles colorcoated
galvanised steel 0.4/0.7mm thick.
Instaloc 40
160mm bracket is required with 160mm
insulation. For thicker insulation
increase bracket size accordingly.
Outer Cladding
Corus Panels and Profiles colorcoated
galvanised steel 0.5/0.7mm thick.
Sheeting Rail
Sheeting rails supplied by others.
The rail is not fire protected so a facility
for expansion is required (slotted fixing
holes).
Construction Notes
All fixings and components to be
steel.
All outer sheet side laps must be
stitched at not more than 600mm
centres.
Lining panels do not require stitching.
The Building Regulations 2000
Approved Document L2 – April 2002
Contact Corus Panels and Profiles
Technical Department for information on
the insulation thickness needed for this
system to meet part L requirements.
Warrington Fire Research Centre
number 141917.
System assessment to comply with
BS476 part 22.1987 in relation to
internal fire.
Stability = 240 minutes
Integrity = 240 minutes
Insulation = 30 minutes
Firewall Systems 21