GB
24
20
800
100
100
20
100
100
500
600
20
100
100
20
100
100
500
Wall of combustible material
600
20
100
100
Wall of non-combustible material, made of 100 mm
aerated concrete in the recess example.
20
100
100
500
Wall of non-combustible material that is not in contact
with combustible material and therefore has no mini
-
mum thickness requirement.
Recess example
Chimney breast
550
max 100
20
100
M
in. 600 cm
2
M
in. 600 cm
2
N-27/N-27D min 2100
N-30/N-30D min 2300
Note!
The dimensions are the minimum
dimensions, unless otherwise
stated..
20
100
Summary of Contents for Q-27FL
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