​​​​​​​40 Below Flashing Tape is a self-adhesive flashing tape to seal around windows, doors, and other joinery openings as a secondary defence against water penetration.

A classic, white facer tape that has excellent adhesion and a no-nonsense performance record, earning the trust of the professionals. 40 Below is compatible with most wraps and sealants so eliminates issues on-site.

  • Incredible adhesion and reliable and dependable weather tightness in a wide range of conditions from -40°C up to 65°C.

  • Extremely thin (0.2mm) so allows for easier fitting of windows and doors.

  • Great value for money.

  • Simple 4-step installation. Save time reducing costs.

  • RIGID AIR BARRIERS – 40Below is tested and approved for sealing the joints on Rigid Barriers. Tested and approved for use by BGC Durabarrier and OS’BraceRAP.


SKU 40below

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