NORfast is a revolutionary retro-fit seal.
Using ‘dual air pocket technology‘, NORfast effectively creates a seal between the door and the stop, which boosts the acoustic performance of the door by up to 42dB.
NORfast provides excellent fire and smoke sealing, in accordance with BS 476 Part 31:1 and BS 476 Part 22:22.
Designed to include a PVC-housed intumescent strip, NORfast is capable of expanding or swelling (intumescing) under extreme heat, which provides a greater seal in the event of fire.
The recommended gap tolerance is 3mm - 4mm.
BS 476 Pt 22:22 Fire Rated Intumescent Seal
BS 476 Pt 31:1 Compliant Smoke Seal
Acoustically Tested up 42dB
Dual Air Pocket Technology
|| High-Tack, Self-Adhesive Strip
|| Single / Double Leaf Doorsets
Single Action Doorsets