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Diffusion foil under the cover
BILKA 180g foil is a membrane open to diffusion, designed as a house covering to be mounted under the outer layer of the roof. The BILKA 180g foil is fully waterproof, protects the thermal insulation against rain and snow and provides an excellent wind barrier.
Technical characteristics:
- specific weight 180g/m² ± 11%
- tensile strength: 270N/5cm (+60; -60) / 140N 5cm (+35; -35)
- temperature range -30 ÷ 80°C
- waterproofing degree W1
- Sd 0,02m (+0,04; -0,01)
- material: polypropylene
| Product Name | BILKA 180g Foil |
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| Package size: | Rolls 1,5 m x 50 m = 75 m²/roll |
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| Purpose and usage: | Diffusion foil under the cover - designed as a house covering to be mounted under the outer layer of the roof. Fully waterproof, it protects the thermal insulation against rain or snow, being an excellent wind barrier. | |
| Material: | It can be used for all ventilated and non-ventilated roof types. | |
| Caracteristics | Test method | Declared value |
| Roll length | EN 1848-2 | 50m (-0/+2%) |
| Width | EN 1848-2 | 1,5m ± 0,5% |
| Mass per unit | EN 1849-2 | 180 g/m² ± 11% |
| Reaction to fire | EN 11925-2 | E Class |
| Watertightness (2kPa) | EN 1928 | W1 Class |
| Watertightness after artificial ageing | EN 1296; EN 1928 | W1 Class |
| Resistance to tearing (Longitudinal/Transverse) | EN 12310-1 | 170N (+60; -60) / 180N (+60; -60) |
| Tensile strength (Longitudinal/Transverse) | EN 12311-2 | 270 N/50mm (+60; -60) / 140 N/50mm (+35; -35) |
| Elongation (Longitudinal/Transverse) | EN 12311-2 | 100% (+40; -40) / 150% (+40; -40) |
| Tensile strength after artificial ageing (Longitudinal/Transverse) | EN 1296; EN 1297; EN 12311-2 | 190 N/50mm (+50; -50) / 110 N/50mm (+25; -25) |
| Elongation after artificial ageing (Longitudinal/Transverse) | EN 1296; EN 1297; EN 12311-2 | 80% (+30; -30) / 120% (+35; -35) |
| Vapour permeability | EN 1931 | >1700 (g/m²)/24h |
| Sd | EN 1931 | 0,02m (+0,04; -0,01) |
| Application temperature range | - | -30 : 80 ⁰C |
| Dangerous substances | - | NPD |
Assemblage rules:
The foil under the roof is installed in compliance with the standard DIN 4108 ensuring ventilation under the foil, fixed with battens and rafters, with upward inscription. Given that Bilka 180 g foil is permeable to the vapors of the composition, it can be mounted directly on the heat insulation, the ventilation channel between the foil and insulation will not occur. The foil is mounted parallel to the eaves, with an overlap marked on the roll edge with a colored stripe (min. 10 cm). It will be mounted given the direction of the water flow, it can cross over the ridge of the roof. The foil should be protected from direct exposure to UV radiation within one month of installation and from the effects of scattered radiation in max. three months, by the installation of insulation on the inside.
Storage and warehousing rules:
At shelter, dry place, away from moisture, sunlight and radiant heat
Period of use:
In compliance with the storage rules, retain their qualities for 5 years from purchase.
Warranty:
In compliance with the regulations in force, under the observance of the transportation conditions indicated by the supplier.
Possible risks, prevention prescriptions:
There is no risk of endangering health.