Make sure to check your local building code for attic access size minimums to ensure that your finished opening will still meet these requirements.
Attic access code size.
Your attic may presently have a fixed ladder a pull down ladder or no ladder at all.
If the attic space is smaller than these specs then an access hatch is not required.
What your attic probably does not have is a set of code compliant stairs.
Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that exceed 30 square feet 2 8m squared and have a vertical height of 30 inches 762 mm or more.
See the california mechanical code for access requirements where mechanical equipment is located in attics.
Having searched online for a simple design in the past i knew that there was literally not a single good article or resource on constructing a truly airtight attic hatch.
The type of attic access determines the means you can install for entrance into the attic.
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.
To convert your attic to living space you cannot provide access via a ladder.
When the access is located in a ceiling minimum unobstructed headroom in the attic space shall be 30 inches 762 mm at some point above the access measured vertically from the bottom of ceiling framing members.
Where the access is located in a ceiling minimum unobstructed headroom in the attic space shall be 30 inches 762 mm at some point above the access measured vertically from the bottom of ceiling framing members.
Weight capacity designed to fit ceiling heights from 8 ft.
2006 irc residential construction.
Building codes 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.
Built for safety this sturdy wood ladder makes it easy to access your attic with nine non slip steps and a convenient handrail for support while climbing.
Here s the full text of the code.
Minimum opening size 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.
See section m1305 1 3 for access requirements where mechanical equipment is located in attics.
The access opening should be located in a hallway or other readily accessible location and minimum 22 x 30.