2 Hour Rated Door
Steel fire doors are rated by time in minutes or hours that a door can withstand exposure to fire test conditions.
2 hour rated door. A 2 hour rated wall. 857 single up to 3 hour rated ratings are limited by door size and orientation. Commercial fire rated doors are widely recognized as the best value in the door industry. 11 opening wall rating door and frame rating 4 hour 3 hour 180 minutes.
Stairways is an important escape path in fire but it can be block with fire and smoke if a 2 hour fire rated door is not installed in place. To complete your building s fire protection system install fire rated access doors when it comes to commercial industrial and even in some domestic homes depending on local building regulations these doors are mandatory best access door s 2 hour fire rated access panel is ideal if you need a door that allows greater accessibility. And can be used with new masonry or drywall construction when the wall is being built. Labeled door frame 2.
Superlite x 90 fire protective glazing can be used in doors with a max area of 100 sq. And a 3 4 hour door is used in a one hour rated wall. The door and frame assembly is fire rated with a 1 1 2 hours rating. Hourly ratings include 1 1 2 hours 1 hour 3 4 hour and 1 3 hour with the maximum rating required of any swinging type fire door being three hours.
Approved latching device lockset or exit. Approved closing device door closer or spring hinges. The frame is. You need to verify what fire door rating is required.
Table 1 of sdi 118 shows the door and frame must bear a 3 hour fire label. The notable exception is that 1 3 hour rated doors are also used with one hour rated walls. A door is installed in a 4 hour fire wall and used as a separation between two adjoining buildings. Normal glass will break under heat stress during a fire allowing dangerous smoke to travel to surrounding areas.
This is the minimum requirement for all vertical openings in building like stairway or communication risers to prevent fire from spreading quickly. Any retrofit or other field modification to a fire rated opening can potentially impact the fire rating of the opening and curries makes no representations or warranties concerning what such impact may be in any specific situation. For up to 90 min. Spring hinges for doors up to 3 0 x 7 0 only 4.
Most steel doors outlast their wood counterparts by over 10 years are better insulated vandal resistant and longer lasting than wood doors or fiberglass doors. The frame is compatible with stud walls that have a thickness of 4 7 8 in. However a door with a higher fire rating than the opening requires may also be used.