MonarTile Supa-R

Reinforced undertile lining featuring synthetic material with a composite construction. The membrane is designed for use in ventilated warm and cold pitched roof situations and is used to reduce wind loads on slates and tiles to provide a secondary water‐shedding layer against wind driven rain or snow. It furthermore acts as an anti‐condensate pick‐up layer to prevent drip effect.

It has a three-ply composition and is manufactured from a co‐polymer polyethylene upper layer and has a hydrophilic polypropylene non‐woven spun bond under layer with an extremely strong polypropylene reinforcing grid in the middle. The membrane is surfaced with silica sand on both sides to prevent the felt sticking in the roll. Combines excellent tensile strength characteristics with high puncture and nail tear resistance. It is also are resistant to UV light degradation, but is not designed to be left exposed for long periods and must be covered as soon as possible.

General information


1 x 50 m rolls

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary


H60/10 Vertical tiling

H60/105 Clay roof tiling

H60/110 Clay roof tiling with counterbattens

H60/120 Concrete roof tiling

H60/125 Concrete roof tiling with counterbattens

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Specification data - Plastics sheets Enhanced data

Product Reference

MonarTile Supa-R


Not required

Monarperm Monotape

Standard product features


1 x 50 m rolls.


0.79 mm.


Matt grey upper surface with white underside.

Technical properties:

  • Nail tear strength: 410 N (machine direction), 330 N (transverse direction).
  • Tensile strength: 500 N/ 50 mm (machine direction), 400 N/ 50 mm (transverse direction).
  • Water tightness: Class W1.
  • Water vapour resistance: 250 MNsg.

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