Nail popping

Exterior · Stucco · printed page 317 (PDF page 318)

Original page Sign in to save

Book index entries

Nail Popping on Stucco Wall

Text in the illustration

sheathing
nail
wire lath
framing lumber
stucco (3 coats)
A
framing lumber shrinks as it dries
B
force against the wall pushes the sheathing and stucco back against the stud
the nail stays out, popping off the stucco

Generated explanation

Three wall cross-sections illustrate nail popping in a three-coat stucco assembly over wire lath and sheathing attached to framing lumber. The first section identifies the wall layers and a nail penetrating the framing. Stage A shows the framing lumber shrinking as it dries, leaving a gap between the stud and sheathing. Stage B shows force pushing the sheathing and stucco back against the stud while the nail remains projecting. The nail head breaks off a localized piece of stucco, shown falling away from the wall.