unit 32 ceiling framing. basic methods of roof framing conventional roof construction trussed roof...
TRANSCRIPT
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Unit 32
Ceiling Framing
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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
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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
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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
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Joist spacing for spans, sizes, and grades of lumber
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