Intumescent Fire Door Seals
Standard intumescent strip and smoke seal.
Intumescent fire door seals. The intumescent fire seals association ifsa is the trade association dedicated to the science and application of intumescent based sealing materials for the passive fire protection industry. Intumescent products are typically used for a smoke and fire barrier on wood doors and are activated by heat. The association provides technical advice and guidance on all matters relating to fire door seals smoke seals glazing seals and all penetration gap. Generally speaking the requirement for intumescent seals or gaskets are a function of the individual manufacturers listing.
This zero 3056fs 3557fs fully mortised for double active doors specialty aluminum and silicone mortised meeting stile utilizes intumet intumescent material which prevents the spreading of fire and effectively seals the gap between a pair of doors from the infiltration of fire smoke sound light drafts and insects. A regular fire and smoke seal will be fitted to a fire door. Available in three anodized aluminum finishes and is custom cut to size. Intumescent seals uk specialists in passive fire protection products fire door seals fire glazing seals ironmongery protection structural fire seals.
This will prevent both fire and smoke from seeping through the sides or bottom of the door. Intumescent seals or gaskets are not required on fire rated steel doors. A door bottom intumescent fire and hot smoke seal that is designed to salvage non compliant fire doors where clearances exceed 10mm under fire doors.