Bilka 90 g film
Diffusion film under the cover
Diffusion roof film, of the economic category, with three layers: a special diffusion membrane, between two layers of polypropylene flies. No ventilation layer is necessary between the film and the thermo-isolation.
Technical features: specific weight 90g/m², 170N/5cm / 100N/5cm tensile strength, W1 waterproofing degree; Sd 0,05m.
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Product name: |
BILKA 90 g film |
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Package size: |
Rolls of 1,5 m x 50 ml = 75 m²/roll |
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| Purpose and usage: |
Diffusion film under the cover – it’s used as additional protection layer against dust and moisture which penetrate under the cover, for roofs with only one ventilation layer. |
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Material: |
Gray color three-layer film(between two layers of polypropylene flies, a membrane permeable to steam diffusion, but impermeable to water) |
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Properties: |
Control methods: |
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Roll length |
EN 1848 - 2 |
50m; (-)2% |
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Roll width |
EN 1848 – 2 |
150cm; (-)0,5% / (+)1,5% |
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Linearity |
EN 1848 – 2 |
< 30 mm/10m |
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Specific weight |
EN 1849 - 2 |
90 g/m2; (±10%) |
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| Flammability degree |
EN 13501-1, EN ISO 11925-2 |
Euroclasse: F |
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Waterproofing |
EN 1928 |
W1 |
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Sd |
EN ISO 12572 |
0,05m; (-0,015m) |
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Tensile strength (Long/Transv) |
EN 12311-1 |
170N/5cm (±20%) / 100N/5cm (±20%) |
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Stretch modification –after aging (Long/Tarnsv) |
EN 12311-1 |
max. 25% / max. 25% |
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Stretch (Long/Transv) |
EN 12311-1 |
70% / 70% |
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Tensile strength modification – after aging (Long/Transv) |
EN 12311-1 |
max. 30% / max. 30% |
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Follow-up ultimate strength (Long/Transv) |
EN 12310-1 |
70N / 70N |
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Elasticity at low temperature |
EN 1109 |
(-) 24⁰C |
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Assemblage rules:
As under cover film it shall be assembled according to the regulations under norm DIN 4108 providing ventilation under the film, fixed on the rafters with counter-strips, with the inscription upward. Taking into consideration that Bilka 90 g film is permeable to steam by default, it can be directly fitted on the thermo-isolation, a ventilation channel between the film and the thermo-isolation being unnecessary. It can be used at roof trusses with a slope of minimum 25⁰. The film is fixed parallel with the line of the rain shadow, with an overlap marked on the edge of the roll with a colored stripe (min. 10 cm). It shall be fitted taking into account the direction of the water flow, and it can be drawn over the coping of the roof as well. It’s a diffusion film which resists to normal thermal duties (with max. adequate ventilation: +70⁰C), implementation temperature (-) 20⁰C – (+)40⁰C, maximum UV resistance: 3 months
Storage and warehousing rules:
Indoor, in a dry place, free of moisture, radiant heat and solar radiations
Usage period:
Under the observance of the storage rules, it will keep its qualities for a period of 5 years since the purchase
Guarantee:
In compliance with the regulations in force, under the observance of the transportation conditions indicated by the supplier – under the observance of the usage instructions and submission of the purchase invoice of the product.
Related prescriptions, specifications:
SR EN 13984
Possible risks, prevention prescriptions:
There is no risk of endangering health.
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