MonarTile Protect

MonarTile Protect

Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type


Pitched roof undertile lining.

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Undertile lining featuring a 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 has a twinply composition and is manufactured from a polyethylene upper layer with a polypropylene non‐woven spun bond under layer. 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.

Tested to BS EN 13859‐1.

General information


1 x 15 m or 1 x 45 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 Protect


Not required

Monarperm Monotape

Standard product features


1 x 15 m or 1 x 45 m rolls.


0.45 mm.


Matt black upper surface with black underside.

Technical properties:

  • Nail tear strength: 140 N (machine direction), 150 N (transverse direction).
  • Tensile strength: 150 N/ 50 mm (machine direction), 135 N/ 50 mm (transverse direction).
  • Water tightness: Class W1.
  • Water vapour resistance: 190 MNsg.

Third party certifications
  • Certificate: 87/1807
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