REPORT NUMBER: 
ISSUE DATE: 
PAGE: 
FR10430-001 ISSUE 2 
1 June 2023 
9 of 21 
THE LEGAL VALIDITY OF THIS REPORT CAN ONLY BE CLAIMED ON PRESENTATION OF THE COMPLETE SIGNED PAPER REPORT.  
EXTRACTS OR ABRIDGMENTS OF THIS REPORT SHALL NOT BE PUBLISHED WITHOUT PERMISSION FROM BRANZ LTD. 
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2.1.1 
Conditioning 
The construction of the wall occurred on 10 September 2018.  The wall was left under ambient 
laboratory conditions until testing on 12 September 2018. 
2.1.2 
Specimen Selection 
BRANZ was not responsible for sampling or selection of materials or the construction of the 
wall. 
2.2 
Plans and Specification 
A copy of the client supplied specification is given in this report as Figure 1. Further details of 
the tested specimen are held on file by BRANZ. All dimensions are nominal unless otherwise 
stated. Where discrepancies between the dimensions in the report text and those shown in 
the attached drawing exist, the report takes precedence.  
2.3 
Panel Construction 
The DeltaCool-MW panels consisted of a ConRock L10 mineral fibre core with a stated density 
of 100 kg/m³, faced with nominally 0.6 mm thick pre-painted mild steel skins. The steel skins 
were bonded to the mineral fibre core using a two component polyurethane adhesive. Along 
the vertical edges of the panels the steel skins had an interlocking male/female joint 
arrangement. 
The measured properties of the 100 mm thick DeltaCool-MW panel including the steel facings 
were as follows: 
Moisture content 
0.96 % 
Density kg/m³  
209.4 kg/m³ 
2.4 
Installation 
The panels were joined together along their vertical edges with 3.2 mm diameter x 9.6 mm 
long stainless steel blind rivets at 300 mm centres on both faces. BOSS Firesilicone-EMA 
sealant was applied into the female joint detail prior to installation of the adjacent panel. 
Mild steel angles, 50 mm x 50 mm x 1.2 mm thick, were placed on the top, bottom and left 
hand vertical edge (when viewed from the unexposed face) of the wall on both faces. The 
angles were secured to the panels with 3.2 mm diameter x 9.6 mm long stainless steel blind 
rivets at 200 mm centres and to the concrete specimen holder with M6 x 60 mm Dynabolts at 
nominally 400 mm centres, 100 mm from each end. BOSS Firesilicone-EMA sealant was 
applied to the inside faces of the angles which contacted the panels. The right hand vertical 
edge was not secured to the specimen holder and ceramic fibre was placed between the panel 
edge and the specimen holder.  
 
 
 
 

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