 |
| Flooring U-values |
Semi Detached House |
| Exposed perimeter to area
ratio |
U-Value
W/m²K |
| 1:1 |
0.46 |
| 0:9 |
0.45 |
| 0:8 |
0.44 |
| 0:7 |
0.42 |
| 0:6 |
0.4 |
| 0:5 |
0.38 |
| 0:4 |
0.35 |
| 0:3 |
0.3 |
| 0:2 |
0.26 |
| 0:1 |
0.17 |
|
The heat loss
in a floor is greater at the exposed perimeter edge of the
floor. To calculate the U-Value, the exposed perimeter edge
to area ratio needs to be
worked out e.g. - a 100m² area, semi-detached house with 3 external walls
of 10m each has a perimeter edge
to area ratio of 0.3 (i.e. 30m ÷ 100m²=0.3) which, using Foil-Tec
Single, gives a U-Value of 0.3 W/m²K.
|
