Category h gaskets for use with listed steel frames and or classified steel covered composite hollow metal doors rated up to and including 3 hours.
Fire rated door gasket.
Fire door gasket.
In commercial buildings in the united states fire rated doors require special gaskets to prevent smoke from getting through the opening during a fire.
And wood core doors rated for 20 minutes without hose stream.
This gasket is constructed from high quality durable materials that will outlive many usages.
Fire rated doors are required in numerous areas of a commercial buildings.
Is a 20 minute label door a real fire door.
Vestibules that are part of a smokeproof enclosure horizontal exits and elevator lobby doors in occupant evacuation elevator shaft systems.
This zero 58fs door head and jamb protector prevents sound light air infiltration comes with psa backing to be used as a mortised door gasket and is designed to provide extra fire and smoke protection by utilizing intumescent t echnology.
Not all doors in a commercial building need to be fire rated.
Smoke seals are designed to accomplish this.
Generally speaking the requirement for intumescent seals or gaskets are a function of the individual manufacturers listi.
Wood and plastic covered composite doors rated up to and including 1 1 2 hours.
Metal fire doors can attain ratings up to 3 hours where wood fire doors can be rated up to 90 minutes.
Smoke gaskets on fire doors must meet smoke and draft control requirements.
Intumescent seals or gaskets are not required on fire rated steel doors.
How to install smoke seals on a fire door.