Required Attic Access Opening

The rough framed opening must be a minimum of 22 inches by 30 inches.

Required attic access opening.

The 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches. R807 1 attic access in buildings with combustible ceiling or roof construction an attic access opening shall be provided to attic areas that exceed 30 square feet 2 8m sq and have a vertical height of 30 inches 762mm or greater. Attic access r807 1 attic access. The rough framed opening.

The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members. Access doors from conditioned and doors access doors from conditioned spaces to unconditioned spaces g p e g attics and crawl spaces shall be weatherstripped and insulated to a level equivalent to the insulation on the surrounding surfaces. In buildings with combustible ceiling or roof construction an attic access opening shall be provided to attic areas that exceed 30 square feet 2 8m2 and have a verti cal height of 30 inches 762 mm or greater. Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that exceed 30 square feet 2 8 m2 and have a vertical height of 30 inches 762 mm or greater.

According to the 2006 international residential code r807 1 attic access homes with combustible materials in the ceiling and roof construction must have an access to attic areas that exceeds 30 square feet and with a vertical height of 30 inches or greater. These specs are per r807 1 of the international residential code irc and the residential edition of the florida building code fbc. If the access is located in the ceiling the minimum unobstructed headrom above the opening must be 30 inches measured vertically at some point over the access. Access hatches none 402 2 3 access hatches and doors.