Attic Hatch Fire Requirements

An insulated fire rated door carries a temperature rise rating that uninsulated ones don t have.

Attic hatch fire requirements.

They must have a width of at least six metres they must have overhead clearance of at least five metres they must have a climate resistant surface like concrete or asphalt. It is for this reason that for safety and durability fire rated access door ceiling application requires an insulated product. 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. Attic area exceeds 30 square feet and.

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. Solutions for the new code requirements r 42 attic access hatch exceeds all code requirements 22x30 pre finished white wood frame trim e zh t h triple gasketed air tight seal z hatch mark d. Attics are the worst place to be in a fire because heat and fire rise rapidly.

Any drywall edges on both the hatch and the surrounding area exposed to physical damage should be protected. In most codes this means an opening not fixed window to the outside. Garage attic door must be constructed such that the 45 minute rating is maintained. Access doors and panels offers you ceiling and attic access panels fire rated upward opening fire rated downward opening with or without drywall flange.