Walls
STYROFOAM™ Solutions
STYROFOAM products are available for use for internally insulated solid walls and timber or steel frame walls.
Indicative thicknesses of STYROFOAM -X and -A products to achieve given U-values are detailed in Table 16.
Table 16 Indicative STYROFOAM thickness (mm) to achieve U-values (W/m2.K)
| U-value |
0.25 |
0.27 |
0.30 |
0.35 |
| Solid Wall |
| External insulation |
STYROFOAM-X |
120 |
100 |
90 |
80 |
| STYROFOAM-A |
140 |
120 |
110 |
90 |
| Internal insulation |
STYROFOAM-X |
110 |
100 |
90 |
70 |
| STYROFOAM-A |
130 |
120 |
100 |
80 |
| Timber Frame |
| 90mm studs |
STYROFOAM-X |
90+30 |
90+25 |
90+25 |
90 |
| STYROFOAM-A |
90+50 |
90+40 |
90+30 |
90+25 |
| 140mm studs |
STYROFOAM-X |
140 |
120 |
100 |
80 |
| STYROFOAM-A |
140+25 |
140+25 |
140 |
100 |
- insulation between and external to studs
- 15% timber fraction
