Ceiling (habitable) — basements: code vs good practice

Code: 7 ft. Good practice: 7′6″+.

Beams + ducts — basements: code vs good practice

Code: 6′4″. Good practice: meet code.

Code: required. Good practice: meet code.

Code: 6″ in 10 ft. Good practice: more.

Code: test. Good practice: fix at 4 pCi/L.

Code: on this level. Good practice: meet code.

Code: outside sleeping areas. Good practice: on this level.

Rooms · Chapter 9

A basement is a room in the ground. Before it can be living space, it has to stay dry, have healthy air, enough height and a way out in a fire.

IRC R305 ceiling heightIRC R310 escape openingsIRC R401.3 drainageEPA radon action level

9.1

Water, air, height and escape. Finishes come last; they hide problems if you skip the first four.

Fix the water before you build the room.

The rest of Basements: 6 more spreads, 35 drawings and 21 code citations, plus every other chapter, is part of the full fieldbook.

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