Identify types of roof openings.
Identification requires knowledge of framing according to specifications. For a chimney, headers must be set plumb, header top must be beveled for slope, and frame must clear chimney by two inches. For a dormer, the lower header must be set plumb and the upper header must be set at right angles to the roof slope. Identification may also include other types of roof openings, such as skylights.
Process/Skill Questions:
- Which set of plans contains details for framing a roof opening?
- What are the special considerations when framing roof openings?
- According to building code, what is the tolerance allowed when framing roof openings?
NCCER Carpentry Standards
Level One, Module Seven (27112-13): Ceiling and Roof Framing
Module Seven (27112-13) provides an overview of ceiling and roof framing, including the components of ceiling and roof framing, the different types of roofs used in residential construction, and the use of trusses in basic roof framing. The methods for laying out rafters, erecting a gable roof, framing a basic gable end wall, and installing roof sheathing are introduced. It also provides instruction on how to estimate the amount of materials needed for a material takeoff for a roof.