
Astria.us.com
126647-01_E
12
VENTING INSTALLATION
Continued
CAUTION: Do not seal openings on the rooftop
flashing. Follow the installation instructions provided
with the termination being used.
CHASE INSTALLATIONS
Instructions for chase installations are included with the chase style
termination chosen. In a multiple chase installation, be sure to provide
adequate distance between terminations to prevent smoke spillage
from one termination to another. Terminations must be separated a
minimum of 24" center to center and stacked at a minimum vertical
height difference of 18" (see Figure 22).
Note:
If a decorative shroud is to be installed, contact the manufac-
turer for specifications.
10 FOOT RULE
All chimney terminations must extend a minimum of 3' above the
highest point where it passes through the roof and must be at least
2' above roof with a 10' horizontal span (see Figure 23).
FINISHING FIREPLACE
Combustible materials, such as wallboard, sheet rock, drywall, ply-
wood, etc. may directly contact sides and top front edge at nailing
flanges of fireplace face. It is important that combustible materials do
not overlap the face itself. Brick, glass, tile or other noncombustible
materials may overlap the front face provided they do not obstruct
louvered slots or any other opening. When overlapping with a non-
combustible facing material, use only noncombustible mortar or
adhesive appropriate for the particular installation.
24" (610 mm)Min.
24" (610 mm)Min.
18" (458 mm)
Min. Typ.
Figure 22 - Multiple Chase Installation
Figure 23 - 10 Foot Rule
Figure 21 - Termination
RLT-8DM
Collar
Flashing
Underlap
Shingles
Overlap
Shingles (Top
and Sides)
Caulk
Attach Bracket
Tabs to Outer Pipe
(3 places) Secure
with Screws