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EXTERIOR CORROSION PROTECTION:
It is recommended to apply an exterior grade high heat paint to any plate supports, full/half
angle rings, wall supports/guides, aluminized outer walls corrosion protection against the
elements. (Ex. Rustoleum V200 series High Heat Industrial Aerosol)
SEISMIC REQUIREMENTS
In certain areas of the country, local codes contain requirements to address seismic risks.
Seismic requirements for chimneys and grease ducts usually include specifications for
additional "sway bars" / bracing, or similar devices in order to help stabilize the system in the
event of an earthquake.
Specific guidelines (including spacing, location, size and method of attachment of bracing /
sway bars or other devices) for addressing seismic requirements vary depending upon the
adopted code, seismic zone, duct size, location in building, etc. and are not within the scope
of these installation instructions.
Consult with a design professional in order to determine compliance options for these potentially
complex requirements when this product is to be installed in a building where these additional
requirements apply.
The support methods described in these instructions have been proven adequate (via UL
certification) for locations where there are no additional seismic zone requirements. In order
to address additional seismic requirements they may be further supplemented with a variety of
generic sway bars or braces that attach to or around the outer wall of the grease duct system.
Full Angle Rings (FAR) and Half Angle Rings (HAR) may be included as components of such
supplemental bracing.
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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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