ALUTHERMO ROOFREFLEX®
An insulating, reflective roof membrane that is watertight and highly vapour-permeable. It is always used above existing insulation. May be used for the roof or walls (cladding) from the outside only. EPC & LABC certified.
HOW DOES IT WORK?
ROOFREFLEX® is composed of the following layers:
- A reflective and highly vapour permeable membrane
- A 37mm thick layer of moisture-proof polyester fiber with a thermal conductivity of λ 0,0366 W/(m.K)
This insulation material improves the roof’s overall thermal resistance by combining its many qualities with those of the insulation material installed between the rafters.
Its impermeability significantly limits the penetration of cold air in winter, reduces thermal bridges and reduces the risk of condensation. Its insulating layer of polyester wadding reduces energy loss and increases acoustic protection.
Finally, the reflective power of this insulating roof membrane provides considerable protection against the sun’s rays and significantly improves comfort by reducing the risk of overheating in summer.
- EPC & LABC certified
- A breathing, reflective, insulating roof membrane
- Improves the thermal and acoustic performance without modifying the structure
- Reduces thermal bridges
- Improves comfort by reducing overheating in summer
- Self-adhesive overlap included
| Dimensions of the roll | 1,40 x 10 m |
|---|---|
| Surface area per roll | 14 m² |
| Weight | ± 730 g/m² |
| Thickness of the flexible polyester fiber | ± 37 mm |
| Operating temperature range | -40°C to +80°C |
| Fire resistance classification | F |
| Thermal core resistance | R = 1,00 m².K/W |
| Thermal conductivity | λ = 0,0366 W/(m.K) (EN 12667) |
| Emissivity | 0,18 |
| Resistance to water penetration | Tight W1 (EN 1928) |
| Water vapour transmission properties | 380 g/m².d |
| Tensile strength in longitudinal direction in transverse direction | 220 to 360 N/50mm (EN 12311-1) 150 to 275 N/50mm (EN1 2311-1) |
| Tear resistance in longitudinal direction in transverse direction | 120 to 230 N (EN 12310-1) 175 to 280 N (EN 12310-1) |
| Elongation in longitudinal direction in transverse direction | 55 to 100 % (EN 12311-1) 70 to 150 % (EN 12311-1) |
| Sd value | 0,061 m (± 0,01) (EN 12572) |
Technical installation instruction
Different U-Value calculations
U-Value and Condensation Risk Calculations – Slope Roof
U-Value and Condensation Risk Calculations – Timber Frame, Cavity, Timber Frame
U-Value and Condensation Risk Calculations – Timber Frame No Cavity
More calculations available on request.
