LARGE
CROWN CAP
SMALL
CROWN CAP
FLASHING
INNER
53
DM 54 Chimney System: Crown Caps
DM 54 Small Crown Cap (Figure 108)
The DM 54 small crown cap is a prefabricated cement
weather cap that measures 26- 1/2” square and 3” thick. The
small crown cap is designed and installed the same as the large
crown cap.
The small crown cap is intended for use where DM
54 chimneys are to receive thin veneers and cultured stone that
do not require the installation of the Isokern brickledge. The
small crown cap is also suitable where DM 54 chimneys are to
receive a stucco nish.
Other chimney terminations are possible with DM 54
chimneys. Check local codes for use of custom chimney termi-
nations and decorative shrouds.
DM 54 Large Crown Cap (Figure 109)
The DM 54 large crown cap is a prefabricated cement
weather cap for masonry veneer chimneys. The large crown cap
measures 37-1/2” square and is 3” thick at its center.
The component has an octagonal hole at its center so
that the top inner liner of the DM 54 chimney stack can pass
through it. The crown cap then sits on the top most DM 54
outer casing block.
To set the large crown cap the last inner liner should
be at least 3” above the last outer casing block in the chimney
stack.
Mortar the top of the last outer casing block. Set the
large crown cap over the inner liner and onto the top of the last
outer casing in the stack.
Caulk or mortar the joint between the octagonal liner
and the crown cap where the liner comes through the top sur-
face of the large crown cap.
FIGURE 106
FIGURE 107
FIGURE 108
FIGURE 109
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