Double Fire Door Gaps

The smoke and the fire will try to push through the side and top gaps around a fire door while usually drawing air from underneath the door.

Double fire door gaps.

Seal the space between your double doors. Epdm resists abrasion and weather. 3 4 between door and frame. 30 30 double action door.

Which is designed to expand when temperatures reach beyond 200 c to seal the gaps between the door and frame. The development of fire door testing. The old test of fire doors to bs 476 part 8 for fire resistance was carried out simply in a furnace increasing the temperature to that found in rooms on fire and. Vinyl is the most economical choice.

Nfpa 80 fire doors and other opening protectives. They are abrasion resistant neoprene. Brush seals have flexible filaments that conform to fill gaps. In general clearance for those allowed gaps are as follows.

You can measure the gap with a simple gap gauge. Flat seals press against surfaces to create a seal. Contains information on maximum gap allowances for different types of fire doors. It s recommended to aim for a 3mm gap to ensure adequate room for the intumescent strips to activate in the event of a fire and for the smoke seal strips if installed to not get damaged by the opening and closing of the door.

The filaments are nylon for good wear resistance. 10mm x 4mm both sides and top 10mm x 4mm both sides and top 30 30 double pairs of doors. Gaps between fire doors and the door frame should never be more than 4mm or less than 2mm. Best practice guidance states that the gaps at the sides and top of a timber fire door should be between 2 and 4mm.

Under the bottom of a door. Wraparound seals create a seal on both sides of a door. 1 8 for more detailed gap information refer to nfpa 80 section 6 3 1 7 and section. 1 8 meeting edges for a pair of doors.