Isokern Standard 36 - Component Weights

SMALL
CROWN CAP
LARGE
CROWN CAP
BRICK LEDGE
INNER LINER
OUTER CASING
OFFSET BLOCK
31
DM Chimney: Component Weights
Isokern DM Chimney Weights:
Total installed Isokern DM chimney weight will vary
according to each specic installation. Total installed chimney
weight will be based on the overall height and the conguration of
the chimney system.
Chimneys may be straight vertical stacks of DM outer
casing and inner liner but may also include the use of offset
chimney blocks, brick ledges, chimney reinforcement, brick/stone
veneers, cement crown caps and chimney shrouds.
The DM chimney component weights are as follows:
Small crown cap: 80 lb.
Large crown cap: 100 lb.
Brick ledge: 110 lb.
14” diameter inner liner: 45 lb.
Outer casing block: 90 lb.
Offset block*: 84 lb.
*Construction of an offset block sequence will shift a portion, if
not all of the chimney load off of the rebox and smoke dome.
Additional reinforced concrete footing and slab area may need to
be provided adjacent to or as a continuation of the primary support
slab area for bearing the steel or masonry support required for an
offset sequence. (See pages 33-35) Consult a structural engineer
for specic, individual structural requirements.
Notes:
Plan chimney conguration carefully before constructing
the required reinforced concrete support foundation for the
replaces. Be sure that enough structural masonry area is available
to support any offset chimney sequence included in the proposed
chimney design. (See Page 35)
Earthcore is not responsible for site specic structural
support details and load specications for replaces and DM
chimney system installations. Consult local structural engineer
for proper job-specic support structure design, sizing and load
bearing specications.
Unless otherwise noted, all oor drawings in this manual
are merely illustrations to indicate the presence of an underlying
noncombustible support structure to the replace installation.