NORfast Perimeter Seal
by Norsound
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 20:22. 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.
Specification Details for NORfast Perimeter Seal (Acoustic Door Seals)
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Norsound is consulted before specifying.
Size & Weight
Technical
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| Features (?) | Durable material , Easy fit , Protects against fire , Protects against smoke , Sound reduction | |
Materials & Finishes
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