Attic area exceeds 30 square feet and.
Irc attic access.
The 2015 irc requires r 49 insulation for ceilings with attic spaces.
Wednesday july 4 2018.
Pa302 1 ceilings with attic spaces n1102 2 1 r402 2 1.
If no equipment then the basic requirement is 22 by 30 rough framed.
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.
Buildings with combustible ceiling or roof construction shall have an attic access opening to atticareas that exceed 30 square feet 2 8 m2 and that have a vertical height of 30 inches 762 mm or greater over an area of not less than 30 square feet.
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.
The rough framed opening.
2006 irc residential construction.
Current international residential code irc 12 13 section r807 attic access.
You will also see that for smaller attic areas no access is required whatsoever in my view some access to all such limited space areas is desirable to permit visual inspection for leaks or damage pest control etc.
There you ll see that an access opening is all that is specified not stairs.
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.
R 38 shall be deemed to satisfy the requirement for r 49 wherever the full height of uncompressed r 38 insulation extends over the wall top plate at the eaves.
Section r807 attic access r807 1 attic access.
However there is an exception.
Minimum vertical height of 30 inches measured from the top of the ceiling framing members to the bottom of the roof framing members.
16 georgia is bringing back a requirement that was previously an amendment to the 2006 irc which will now require attics containing appliances to be accessible by pull down stairs or other permanent stairs.
R807 1 1 attic service access.
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.