Homes have various sizes of plumbing vent pipes, exhaust fans, and other components that penetrate the roof decking. In order to prevent water from entering the roof at the openings cut for these penetrations, roofers install ________ or flashing collars.
A) H-clips B) Head flashing C) Drip edge D) Pipe boots
Question 2
________ is a type of brush made from the naturally long hairs of a particular type of hog.
A) Chinese bristle B) Synthetic brush C) Tapered brush D) Natural brush