Polyfab is a non woven, rot proof polyester fabric for use in conjunction with liquid waterproofing membranes. It is easier to wet out and it possesses superior flexibility to materials such as fibreglass.

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  • Features & Benefits
  • Areas of Use

Features & Benefits

  • Bridges gaps 
  • Strengthens membranes by increasing tensile strength and puncture resistance 
  • Flexible Easy to wet out 
  • Outstanding conformability 
  • High grab tensile strength

Areas of Use

  • Gutters 
  • Roof Areas 
  • Flashings 
  • Cracks in substrates


Consistent with the 50 year history of Crommelin, our management team is committed to providing all customers with sound technical advice, innovative products and acceptance of responsibilities associated with our specifications and systems. Warranties of up to 15 years are issued following Quality Assurance procedures. They consist of tailored specifications, maintenance schedules and on site support. Please contact Crommelin for further information.

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