Description
The Sepa Light is a high-resistance impermeable underlay from specialists, Klober. An ideal solution for pitched roofs where traditional ventilation is being used, the lightweight, non-breathable membrane provides an alternative to traditional 1F felt. Offering impressive wind uplift resistance, the Sepa Light impermeable underlay can be used in all wind zones when installed with taped headlap.
The Sepa Light’s high tensile, three-layer composition is strong and durable, and its ultra-absorbent inner layer is fully compliant with BS 5250 regulations. Klober’s non-woven spunbonded polypropylene underlay comes with a ten-year manufacturer’s guarantee, giving you long-lasting peace of mind both during and after construction*. Roofing Supplies UK are pleased to offer the Klober Sepa Light impermeable underlay in 1m x 45m rolls.
Why Choose this Klober Sepa Light Impermeable Underlay 1m x 45m?
- Suitable for ventilated pitched roofs
- Absorbent inner layer
- Strong & durable
- Lightweight alternative to 1F felt
- 10-year manufacturer guarantee
- CE certified
Product Specifications:
Size: 1m x 45m
Colour: Grey
Weight: 120 g/m²
Material: Polypropylene
Water Vapour Transmission (SD Value): >25m
Resistance to Water Penetration: W1
Tensile Strength (MD / CD): 240 / 220
Nail Tear Strength (MD / CD): 120 / 120
Elongation (MD / CD): 60% / 60%
Resistance to Temperature: -40°C – +80°C
Fire Rating: F
Wind Zones: All (with taped headlap), 1-2 (with battened headlap)
Please note: *An impermeable underlay is not a total waterproof barrier and if used as a temporary waterproof covering, some rain penetration may occur. In certain conditions, particularly if there is persistent heavy rainfall combined with subsequent freeze/thaw conditions, an underlay should not be exposed for more than a few days. In the event of severe weather conditions, the product should be covered with tarpaulin (as cited in BBA Bulletin No 2. “Guide to Good Site Practice”)
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