1. Ceiling Framing
Unit 32

2. Ceiling Framing Basic methods of roof framing
Conventional roof construction
Trussed roof construction
Prefabricated assemblies
Houses may have a large open interior when trusses are used
Common members of trusses
Gussets
King Posts
Upper chord
Lower chord
Webs

3. Ceiling Framing Ceiling Joists
Parallel beams that support ceiling loads
From the ceiling of the house and support the ceiling finish
Can act as floor joists for an attic
Should be spaced 16” or 24”OC except for the first two
When joined over partitions a splice may be nailed on either side of the joist
Also may be joined so the joists lap each other
Joists must be supported by a beam
Long ceiling spans can be given extra support by constructing a strong back

4. Ceiling Framing Ceiling Joists (continued)
Size of the ceiling joists depends on
Kind and grade of the wood
Distance they must span
Load they must carry
Form the ceiling of the house and support the ceiling finish
Can act as floor joists for an attic
Should be spaced 16” or 24”OC except for the first two
When joined over partitions a splice may be nailed on either side of the joist

15. Joist spacing for spans, sizes, and grades of lumber