The new lower profile tile and slate roofing underlay system

Onduline benefits

  • Immediate weather protection
  • Moisture control
  • Reduced roof pitch
  • Thermal and sound Insulation
  • Ventilation
  • BBA Certification (Ondutile only)

Dimensions: Onduline

  • Length: 2,000mm
  • Width: 950mm
  • Thickness: 3mm
  • Corrugation height: 38mm
  • Corrugation width: 95mm
  • Number of corrugations: 10
  • Coverage per sheet: 1.5msq.
  • Weight per sheet 6.4kg

DImensions: Onduline lowline (mini 18 profile)

  • Length: 2,000mm
  • Width: 866mm
  • Thickness: 2.6mm
  • Corrugation height: 24mm
  • Corrugation width: 48mm
  • Number of corrugations: 18
  • Coverage per sheet: 1.38msq.
  • Weight per sheet 5.83kg

Minimum recommended roof pitches

  • Interlocking concrete tiles: 12.5°
  • Clay pantiles, natural and fibre cement slates: 17.5°
  • Plain double lap tiles: 22.5°
onduline ondutile close-up captioned

RILCO brochurelogo Onduline Mini 18 Brochure (pdf)

onduline ondutile classic elevation
onduline ondutile mini 18 elevation
Since its introduction onto the UK market in 1989, the Ondutile system has been continually developed to become the market leading independent secondary weatherproof roof underlay system for low pitch tile, slate and shingle applications.
Ondutile provides the same durable weathering performance whilst reducing the roof section making it ideal for projects where height restriction or the aesthetic appearance of the roof line is of paramount importance.