POWERLON® Roof & building membranes

UltraPerm Roofing Underlay

A high performance underlay for all pitched roof types and walls in timber frame structures. Can be used on warm and cold, supported and unsupported, ventilated and unventilated roofs.

  • BBA certified and CE approved
  • Four grades available
  • Breathable with high water vapour permeability
  • Exceptional W1 water resistance
  • High tensile strength and nail tear resistance
  • Pre-printed marking lines
  • Independently tested for full compliance with BS 5534:2014 + A2:2018
Products Catalogue
Installation Instructions
Powerlon Printed Breather Membrane

UltraPerm Customisation

  • Bespoke printing available on the UltraPerm range
  • Enhance the visibility of your brand on site
  • Quality repeat logo printing
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