Decra Roofing Resource Centre, over 30 year’s experience of finding the right lightweight roofing solutions

Decra Oberon Ventilated Monopitch Ridges

Decra Oberon - Monopitch Ridge using Ridge/Barge Cap and Universal Ridge/Hip Ventilator - Detail from drawing DPTE039


Installation Guidance - Decra Oberon
1. Cut roofing felt min. 10mm short to allow clear ventilation through to ridge.

Universal ridge ventilator

2. Create fixing position for Ridge/Barge Cap:

  • Fix battens to top of ridge fascia sized to span from back edge of fascia to top
    edge of top tiling batten.
  • Fix 50 x 25mm batten to top of the ridge fascia board and a 38mm x 19mm batten fixed to outer face of ridge fascia board.
  • Form upstand at back edge of tile.
  • Install Universal Vent strips in front of the tile upstand and also behind the front edge of the Ridge Cap
  • Fold Ridge/Barge Cap to form monopitch ridge profile capping.

3. The Ridge/Barge caps have a slight taper in their design. Place the wider end of the ridge over the narrower end of the ridge beneath (overlap areas shown shaded grey).
Each Ridge/Barge cap should be secured with 2 nails on each side of the ridge cap through the pre-drilled holes.

NOTE: Decra Oberon Ridge/Barge Caps are tapered to allow for laps.

NOTE: Where roof pitches exceed 35° it may be necessary to adjust the return angle of the downturned leg of the Ridge/Barge Cap and use an alternative size of ridge fixing batten.


    Contact Us

    Contact Us

    To discuss your project in more detail please contact
    Your Local Area Manager


    Technical Support


    0161 865 4444



    Sales Enquiries & Orders


    0843 224 7400


    0843 224 7401


    Latest News

    Standard Industries Completes Acquisition of Braas Monier to Form Global Roofing Leader


    Icopal Decra Brand Celebrates 40 Years Of Innovation


    Icopal Launches Decra Noxite To Combat Air Pollution


    Decra Provides New Tiles For Cadet Centre Refurbishment


    Hjaltland Housing Association In The Shetland Isles Chooses Icopal's Decra Roofing For New Build Properties

    This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Find out more here