Attic Hatch Fire Requirements

Attics are the worst place to be in a fire because heat and fire rise rapidly.

Attic hatch fire requirements.

Attic area exceeds 30 square feet and. Access doors and panels offers you ceiling and attic access panels fire rated upward opening fire rated downward opening with or without drywall flange. Garage attic door must be constructed such that the 45 minute rating is maintained. Fire access routes must meet the following criteria.

In most codes this means an opening not fixed window to the outside. Missing or opened covers should be called out as should covers made from flammable materials such as thin plywood. It is for this reason that for safety and durability fire rated access door ceiling application requires an insulated product. Since the staircase to the attic can act as a chimney for the fire to quickly spread it s necessary to have a secondary point of egress or exit.

Minimum vertical height of 30 inches measured from the top of the ceiling framing members to the bottom of the roof framing members. An insulated fire rated door carries a temperature rise rating that uninsulated ones don t have. Wednesday july 4 2018. The florida building code fbc and international residential code irc both require a minimum of one attic access opening for homes with combustible such as wood roof construction if the attic space meets these two criteria.