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.
Required attic access opening.
The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members.
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.
The rough framed opening must be a minimum of 22 inches by 30 inches.
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.
The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members.
Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that have a vertical height of 30 inches 762 mm or greater over an area of not less than 30 square feet 2 8 m 2.
Access hatches none 402 2 3 access hatches and doors.
The rough framed opening shall not be less than 22 inches.
These specs are per r807 1 of the international residential code irc and the residential edition of the florida building code fbc.
The rough framed opening.
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.