SHEET LAYOUT

  • Start fixing the sheets in the opposite way of prevailing winds.
  • Minimum roof pitch to be 15° .
  • ONDULINE® TILE shall be supported by purlins with distance of 45 cm.
  • Maximum 3.5 cm overhang at eaves.
  • Maintain top overlap of 20 cm and side overlap of 1 corrugation.
  • Start the second row with a sheet cut in 2, to install the roof in a broken bond pattern. It will avoid overlaps of 4 sheets in a same position.

FIXING

  • 18 fasteners should be used per sheet.
  • Install a fastener on each marking as shown in the image.
  • Fasten on the top of each corrugation at eaves and horizontal overlaps to ensure proper waterproofing and avoid possible deformation of the sheets.
  • Installing the right amount of fasteners is extremely important to avoid possible deformation of the sheets.

RIDGE

  • Overlap the ridges with a minimum of 20 cm to secure waterproofing.
  • Maintain good ventilation to avoid condensation under the roof.
  • You can install ONDULAIR® breathable tape to secure waterproofing and preserve ventilation.