Buildings with combustible ceiling or roof construction shall have an attic access.
Attic ladder irc 2012.
Stairways shall not be less than 36 inches 914 mm in clear width at all points above the permitted handrail height and below the required headroom height photo 1.
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 the vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members.
30 in x 56 5 in folding steel attic ladder with 350 lbs.
The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.
The rough framed opening.
The 2009 and 2015 irc verbiage is similar and still applicable.
Weight capacity designed to fit ceiling heights from 8 ft.
Current international residential code irc 12 13 section r807 attic access.
Capacity item 1255133 model 869333.
It is all about increasing the time for the occupants to get out of the building in a fire event.
Section r807 attic access r807 1 attic access.
Please be aware of the definition and egress requirements of a habitable attic as it relates to dwellings built from the 2012 irc.
For residential buildings a model code you would consult might be the the.
2012 residential stair guide.
Irc 12 13 section r807 1 proponent.
25 1 2 x 64 often used for a longer pull down ladder attic access from a higher than standard ceiling.
Bajnai chesterfield county va icc building code action committee revise as follows.
Section r311 5 stairways.
Handrails shall not project more than 4 5 inches 114 mm on either side of the stairway photo 2 and the.
The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.
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.
30 x 54 for the largest width pull down stairway.
Attics that meet the size and ceiling height criteria of the habitable attic definition in chapter 2 are considered habitable.
And standard ceiling openings of 22 5 in.
Fire rated attic stairs are available of course they cost more.
Fire rated pull down attic ladder is the way to go.
2012 ibc table 722 6 2 1 remember the irc is a prescriptive code not a design or performance code.