Skip to content Skip to navigation menu

Onduline Isoline Low Line Underlay - 1010 x 2000 x 2.4mm

Product code: 276127
Currently in Stock
Delivery Within 5 days from our supplier

Minimum order quantity for delivery is 5

Enter your postcode to check delivery stock in your area & add to basket Check stock & add to basket for delivery to: A reduced quantity will be added to your basket

Please enter a valid postcode

Supplier delivery - from FREE
ISOLINE® LOW LINE is the only UK waterproofing system guaranteed at a 10 degrees pitch with BRE testing and BBA accreditation. Designed specifically for use on low pitch roofs, this lightweight bituminous underlay sheeting has been rigorously tested and is proven to be at least three times less likely to leak compared to a traditional tile system. ISOLINE® LOW LINE underlay sheets are used as a secured waterproofing layer, under the tiled roof. This solution is a perfect waterproofing barrier against potential leaks, that may happen over time through a breach in the tiles covering.
Read more
Read less
Supplier delivery - from FREE
Product details
  • Height: 24 mm
  • Length: 2000 mm
  • Thickness: 2.4 mm
  • Width: 1010 mm
  • Weight: 6.20 kg
  • Material: Bitumen and recycled fibres
  • Colour: Red
  • Coverage: 1.70 m²
  • Usage: Roof tile
  • UV Protected: Yes
  • Years Guaranteed: 30
  • Certifications Met: ISO 9006 / ISO 14002 / BBA
  • Type: Roof tile
  • Brand Name: Onduline
Features & benefits
  • Lightweight bituminous corrugated underlay sheet for use on low pitch roofing
  • Isoline Low Line is the only bitumen corrugated under roofing system in the UK, BBA and BRE accredited, to go as low as a 10 degree pitch for all roof tiles
  • Suitable for use with any roof tile
  • This underlay technology means roofs can be designed with lower pitches, allowing the ability to use any type of tile or slate to deliver more liveable space
  • Guaranteed waterproofing for 30 years
  • Can be installed in dwellings such as new builds, extensions and on outbuildings such as garden offices and garages and any other project with a low pitch requirement
  • Allows increased ventilation and airflow both above and below the sheet and tile battens positioned above the corrugations allow moisture to drain to the eaves
  • Isoline Low Line is fixed below the primary tile or slate roof covering acting as the primary waterproofing layer of a roof
  • Eco-friendly solution: Made from 50% recycled cellulose fibres
  • Quick and easy installation
Data sheets
Customers' gallery