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Klober Sepa Light Impermeable Underlay 1m x 45m

SKU: KU979145-1

£59.71 Incl. VAT
£49.76 Ex. VAT

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Estimated Delivery: 1-3 working days


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”)

    Deliveries are made on the basis the customer can accept the goods, or willingness to off load the goods, or having means of mechanical offload, this also applies to heavier items such as pallets etc. All deliveries are made ‘kerbside’ and often it can be at the discretion of the driver. A large majority of deliveries would be made on a large rigid tail-lift vehicle and off loaded via a pallet truck and only on to flat surfaces such as tarmac, concrete and pavers. If you do have restricted access, please contact us prior to placing your order. We will always try to accommodate your needs. If a delivery fails due to access, we reserve the right to make a re-delivery charge. All delivery charges are calculated when checking out. The delivery charges included are for the Mainland UK only and do not apply to the Scottish Highlands, or Isles off the Mainland. Additional charges may apply for deliveries that aren’t classed within the Mainland (this is classed by ourselves, suppliers and couriers) Please contact us on 01752 466151 or Due to the nature of our business model, this can mean your order will be sent via multiple deliveries. Whilst we will make every effort to deliver your goods within the stated/requested time frame, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules, so we would recommend the end user not to start/schedule any work until the goods arrive. Due to logistics of various couriers and suppliers we are unable to give times of deliveries. However, please call or email us on the day of the delivery and we will try to get an approximate time. Deliveries can take place from as earlier as 07:30 right up to 18:00 depending on the courier/haulier and taking into account local traffic etc.
    You have 14 days from receiving your item(s) to return them should you wish to do so. Please contact us should you wish to arrange a refund/return. Any product marked cut to size, bespoke or made to order are non returnable and excluded from our refund policy.

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