Page 69 - Build 161
P. 69
Fire safety
Group 1-S surface finish on ALL timbers
ü Quick two coat system
ü Easy application
ü Superior clear
matt finish
ü Save on labour and production costs
For more information visit:
www.resene.co.nz/fireshield
Available exclusively from
1000 800 600 400
200
Upper half of walls Ceiling
Lower half of walls
0
0 2 4 6 8 10 12 14 16 18 20
Time (minutes)
Figure 1: Three experiments test the same quantity of timber lining in di erent zones.
Ceiling test from Figure 1 at the peak of the re after 720 seconds.
Surprisingly, the upper wall region appears at this stage to be the most influ- ential. In Figure 1, the same quantity of timber is tested in the three different zones in three separate experiments. The order of best to worst is from right to left being
the lower wall zone, followed by the ceiling and then the upper wall zone.
Good progress is being made, and the research team is looking forward to devel- oping some practical and useful guidance for fire safety designers.
Build 161 — August/September 2017 — 67
FEATURE SECTION
Heat release rate (kW)
