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© 2024 Acronem Consulting Australia Pty Ltd. All rights reserved. 
Web: www.acronem.com.au Phone: 0437 407 176 
Email: cameron@acronem.com.au 
 
Acronem Consulting Australia Pty Ltd     
 
 
 
October 08, 2024 
DELTA PANELS PTY LTD 
ATTN: MR JOHN GUY 
731 BOUNDARY ROAD,  
RICHLANDS, QUEENSLAND, 4077 
AUSTRALIA 
 
Thermal Performance of Delta Panels - Phenolic Foam Composite (TPC) panels  
Roofing, External Wall & Internal Wall Applications 
Dear Mr Guy: 
Further to your request, I can confirm the thermal performance of: 
- 
Delta Panels Phenolic Foam Composite (TPC) Panels, 
as described in the following reports by an accredited testing laboratory.  
- 
CSIRO Report XC4002/R1(Rev B) – Final Issue, Thermal Transmission 
Properties of Phenolic foam composite with nominal thickness of 50mm, 28-
August-2024. (measured density 33.5-37.0kg/m3) 
- 
CSIRO Report XC4002/R2(Rev B) – Final Issue, Thermal Transmission 
Properties of Phenolic foam composite with nominal thickness of 200mm, 28-
August-2024. (measured density 34.0-37.9kg/m3) 
- 
CSIRO Report XC4016/R3(Rev B) – Final Issue, Thermal Transmission 
Properties of Phenolic Foam Composite Panels, 28-August-2024. 
The Declared Material R-values of Delta Panels Phenolic Foam Composite (TPC) 
panels have been determined in accordance with AS/NZS 4859.1:2018 as: 
Table 1: Delta Panels TPC Declared Material R-value 
Declared Material R-value [(m2.K)/W] 
TPC 
Thickness 
(mm) 
50 
60 
70 
75 
80 
90 
100 
110 
125 
150 
175 
200 
Mean 
Temp 
(°C) 
0°C 
1.40 
1.65 
1.95 
2.05 2.20 
2.45 
2.75 3.05 
3.45 
4.10 4.85 5.55 
15°C 
1.30 
1.55 
1.85 
1.95 2.10 
2.35 
2.60 2.90 
3.25 
3.90 4.60 
5.25 
23°C 
1.30 
1.55 
1.80 
1.90 2.05 
2.30 
2.55 2.85 
3.20 
3.80 4.50 
5.15 
 
 

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