Title: (Optional) Install roof coverings in a valley.
Course: Building Trades II (17009-II) > Section: Carpentry: Installing Roofing

Installation should require

- following manufacturer specifications
- ensuring that the roof covering line is straight, even, and parallel to the valley
- following specifications, without harming the flashing.

IRC: Chapter 9 (https://codes.iccsafe.org/content/IRC2018P4) covers flashing details and material requirements for each roof covering in each material section.

Process/Skill Questions:

- What are two common methods of installing composite shingles in a valley?
- What is the purpose of underlayment in a valley?

NCCER Standards:

Carpentry: Level 3

- 27302-02 Roofing Applications