Forum ProfileBack

— Forum Scope —

— Match —

— Forum Options —

Minimum search word length is 3 characters - maximum search word length is 84 characters

Lost password?
Is an enclosed porch "Habitable Space"?
February 21, 2020
10:14 am
New Member

Forum Posts: 2
Member Since:
September 21, 2017
sp_UserOfflineSmall Offline
Per R301. there are 5 categories of sunrooms.  I through III are defined as noninhabitable space, and are unconditioned.  My understanding of R303.9 is that in order to be habitable, a space (up here in the frozen Zone 4 North) must at least be heated so unheated spaces are by definition uninhabitable.   

Habitable space is of course defined as 1) in a dwelling and 2) for living, sleeping, eating or cooking.  

Sunroom categories IV and V seem confusing.  
Category IV is thermally isolated, enclosed walls, conditioned, but is *noninhabitable*. 
Category V is all of the above, open to main structure, and is *habitable*.  
Let’s say I enclose a porch, add a mini-split, put some nice wicker furniture in there, this apparently authoritative reference is showing this as a Category IV (page 12)

Is an enclosed porch always “habitable”?  Can I eat, or live out there?  Or does being thermally isolated from the dwelling unit make it “nonhabitable” despite being conditioned? If I can eat and live and kids can play in there, how can such a space ever be considered “noninhabitable”?