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Fire retardant synthetic roof underlay to provide strong resistance against air and moisture with excellent water vapour permeability

DuPont™ Tyvek® Supro is a fire retardant synthetic underlay recommended for use as a self-supporting roof underlay. It is made by laminating a spun-bonded high density polyethylene (HDPE) to a non-woven polypropylene sheet providing a strong weather resistant barrier with excellent water vapour permeability and UV resistance.

DuPont™ Tyvek® Supro Plus has an integrated tape system for ease of in-situ edge sealing.

Features and Benefits
  • Self-supporting synthetic roof underlay - can be installed without support for spans up to 1200mm
  • 1.5m wide – covers more area per sheet with less number of overlaps
  • No shrinkage – allowing no maximum run length on installation
  • Non kraft based - may be exposed to rainfall during installation without affecting future durability or performance


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