Fire Engineering Assessment, Revision 01 
DeltaCool, DeltaSecrectFix, DeltaTrim at 100 mm and 75 mm Fire Performance, Project No. 25367 
25367-SFE-FEA-01-Delta Panel Fire Performance 
 
 
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o The core is mineral wool with the specifications outlined in Appendix D – Specifications for 
the Mineral Wool, with a nominal density of 100 kg/m3. 
o The mineral wool core shall have a nominal thickness of no less than 74 mm and no greater 
than 99 mm excluding the peaks within the DeltaTrim™ profiled skin. 
o The peaks on the corrugated DeltaTrim™ panel shall be completely filled with mineral wool, 
be no greater than an additional 33 mm onto the thickness of the mineral wool core (for a 
total thickness of 132 mm of mineral wool at a peak), the lateral width of the peak shall be no 
greater than 75 mm, and spaced at no less than 250 mm between centres, as indicated in 
Figure 4-15.  
o The steel skins may be pre-painted and shall have a nominal thickness of no less than 0.6 mm 
inclusive of the painted coating on the internal side of the panel. The external side of the 
panels shall have a nominal thickness of no less than 0.4 mm inclusive of the painted coating.  
o The adhesive layer between the steel skin and the mineral wool does not exceed 1 mm, or a 
total of 2 mm throughout the entirety of the cross section of the panel in aggregate. 
o The joint and corner detailing shall be constructed in accordance with Figure 4-4, Figure 4-5, 
Figure 4-6, Figure 4-7, Figure 4-8, and Figure 4-9 with equivalent fasteners, channels, angles, 
and sealants. 
4.1.4 Tested Assembly Detailing 
 
Figure 4-1 – Left and right wall panel layout (pg. 13, RTF252619 R1.0 by Jensen Hughes). 

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