Energy Efficiency cont'
updated 12 Apr 2011
Below are the tables and from BCA Volume 2 for required R values
for regions around Australia
Alternatively the PDF with the climate zone map can be
downloaded from here.
TYPICAL R -VALUES ECOHOUSING BUILDING PANELS
Climate Zones (Click on Map to enlarge)
| Product |
Thickness |
R - Value
Australia |
R - Value
USA |
| Roof Panel |
108 mm |
4.53 |
24.91 |
| Single sided Roof Panel |
54 mm |
2.50 |
13.75 |
| Wall Panel |
80 mm |
4.10 |
22.55 |
| Wall Panel |
104 mm |
5.37 |
29.53 |
| Wall Panel |
130 mm |
6.73 |
37.00 |
| 2 sided Cladding Panel |
60 mm |
3.01 |
16.55 |
| 2 sided Cladding Panel |
80 mm |
4.10 |
22.55 |
| Single Sided Cladding Panel |
52 mm |
2.70 |
14.85 |
| Single Sided Cladding Panel |
64 mm |
3.30 |
18.15 |
| Roof Panel Gyprock Lined |
108 mm |
5.2 |
28.60 |
| Floor Panel (with Yellow Tongue) |
108 mm |
5.12 |
28.16 |