| Property |
Result |
| Thermal resistance of foil, bubble
film laminate and minimum 13mm clear cavity Rg ISO
8302 and BS EN ISO 6946 (unventilated air space as
defined in BS6946) |
0.810 m²K/W |
| Hemispherical of foil
face |
0.05 |
| Thermal resistance,
bubble film laminate only ISO 8302 |
0.125m²K/W |
| Nail tear resistance
BS4016 (wet & dry) |
min 130N |
Installed air permeability
at 50 Pa BS EN 12153
UV Exposure/Stability |
36 m³/m²/day
up to 3 months |
