Page 270 - Masonry and Concrete

Masonry Veneer

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MASONRY VENEER

veneer, but it is virtually impossible to entirely prevent moisture
from entering a masonry wall. Masonry veneer walls require the
installation of flashing and weep holes for the collection and dis-
charge of moisture which penetrates the exterior wall face or con-
denses within the wall. This is true regardless of whether the space
behind the veneer is intentionally left open for drainage or grouted
solidly with mortar. The flashing is used to intercept and collect
moisture at strategic locations within the wall, and weeps are used
to direct the moisture to the outside of the wall.

HOUSE WRAP OR
15# ASPHALT FELT

SHEATHING

FLASHING

WEEP

FIGURE 7-21

Sheathing and house wrap in veneer walls.

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