Title: Install the collar ties (i.e., rafter ties).
Course: Carpentry II (17003-II) > Section: Framing a Roof

Installation should include

- cutting the collar tie to length to within, +/- 1/16 inch
- cutting the collar tie to angle to within +/- 1 degree
- positioning the collar tie correctly
- installing according to blueprint specifications.

Process/Skill Questions:

- What is the function of collar ties?
- What might happen if collar ties are not installed?

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.