Unit 32

Ceiling Framing

Ceiling FramingBasic methods of roof framing

Conventional roof constructionTrussed roof construction

Prefabricated assembliesHouses may have a large open interior when

trusses are usedCommon members of trusses

GussetsKing PostsUpper chordLower chord Webs

Ceiling FramingCeiling Joists

Parallel beams that support ceiling loadsFrom the ceiling of the house and support the

ceiling finishCan act as floor joists for an atticShould be spaced 16” or 24”OC except for the

first twoWhen joined over partitions a splice may be

nailed on either side of the joistAlso may be joined so the joists lap each otherJoists must be supported by a beamLong ceiling spans can be given extra support

by constructing a strong back

Ceiling FramingCeiling Joists (continued)

Size of the ceiling joists depends on Kind and grade of the woodDistance they must spanLoad they must carry

Form the ceiling of the house and support the ceiling finish

Can act as floor joists for an atticShould be spaced 16” or 24”OC except for the

first twoWhen joined over partitions a splice may be

nailed on either side of the joist

Joist spacing for spans, sizes, and grades of lumber