Title
FIGURING OUT FLASHINGS
FIGURING OUT FLASHINGS
Date
7/2020
7/2020
Author(s)
Harrison McCampbell and Nick Warndorf
Harrison McCampbell and Nick Warndorf
Page(s)
34-37
34-37
Keyword(s)
flashings; wall; chimney; codes; design; saw-cut; concrete
flashings; wall; chimney; codes; design; saw-cut; concrete
Abstract
There is a long-standing but often understated concern about residential and commercial buildings being constructed without through-wall flashing. The common misconception is sheet-metal flashing cut into a wall ¼ to ¾ of an inch will be enough to prevent water from getting past the line of counterflashing and/or roof system. However, in most cases, the latter approach, known as saw-cut flashing, essentially becomes a decorative or aesthetic component rather than a functional one.
There is a long-standing but often understated concern about residential and commercial buildings being constructed without through-wall flashing. The common misconception is sheet-metal flashing cut into a wall ¼ to ¾ of an inch will be enough to prevent water from getting past the line of counterflashing and/or roof system. However, in most cases, the latter approach, known as saw-cut flashing, essentially becomes a decorative or aesthetic component rather than a functional one.