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Tiled or second skin wall linings
(combustible and non-combustible options)
Wall linings less than 20 mm may be
combustible providing the wallboard
support rails are left on.
Adhesive or
mechanical fixing
Mechanical fixings not
recommended across
thetop of the fire, adhesive
is best
If the wallboard support rails are
removed the wall lining MUST BE
non-combustible for at least 300 mm
up the wall
Opening size C minimum
Opening size C minimum
Adhesive or
mechanical fixing
25 mm
No combustible
materials within
50mm of top of fire
Back or support board MUST
BE non-combustible below the
timber lintel line if the wallboard
support rails are removed.
Wallboard support rails are
optional in this configuration.
No combustible
materials within
50mm of top of fire
Backing or support board
must be non-combustible
below timber lintel line
Wallboard support rails
removed. Backing board cut
to clear lips and latches.
Linear installation guide 13563-H 08-19 | 33
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