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Onduline Roofing Sheet Ridges

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Technical Specifications

  • Length: 1000mm
  • Coverage: 875mm
  • Dimensions: 250mm x 250mm
  • Material: Bitumen
  • Weight: 1.2kg
  • Application: Exterior

  • Onduline ridges (to accompany Onduline sheets) should be installed at the apex of a roof, bridging the gap between the sheets on either roof pitch. Onduline Ridge pieces can also be used on hips. 
  • Ridges are manufactured in the same material as the Onduline sheets in 1m lengths.
  • Onduline is an ideal material for Stables and small outbuildings, as they are a cheaper and easy to install product, great for DIY projects.
  • The wings measure 250mm each and the flexible nature of the ridges allows it to adjust ton a wide range of roof pitches. 
  • Each ridge should be lapped by 125mm giving a cover width of 875mm per ridge.
  • Available in BLACK, GREEN, BROWN and RED
  • Lightweight & easy to handle
  • Easy to install
  • Made from the same material as the sheets
  • Colour matched to the sheets
  • Adjusts to different roof pitches
  • A centre roll for a better look

What is a ridge used for?
A ridge is used to cap off the top of an apex building where the top of either side meet.

Are these adjustable to different roof pitches?
A ridge flashing is flexible and will adjust to different roof pitches.

How much should I overlap the ridges?
You should overlap each ridge by 125mm.

What is the minimum pitch for Onduline?
The minimum roof pitch to lay Onduline roofing sheets is 5 degrees with the sheets being laid with an end Lap of 300mm. Sheets laid on a fully supporting decking on purlins to maximum of 610mm centres.

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