Desa 36WS Installing Flashing on a Metal Roof, Terminations / Spark Arrestor, Chase Installations

FLASHING INSTALLATION: (V6F-8DM or V12F-8DM) Determine the flashing to be used with the roof-opening chart. Slide flashing over pipe until base is flat against roof. Replace as many shingles as needed to cover exposed area and flashing base. Secure in position by nailing through shingles (see figure 14).

DO NOT NAIL THROUGH FLASHING CONE.

Figure 14

INSTALLING FLASHING ON A METAL ROOF:

When installing the flashing on a metal roof it is required that putty tape be used between the flashing and the roof. The flashing must be secured to the roof using #8 x ¾” screws and then sealed with roof coating to prevent leakage through the screw holes. A roof coating must also be applied around the perimeter of the flashing to provide a proper seal.

STORM COLLAR INSTALLATION: (SC1 or SC2)

Place storm collar over pipe and slide down until it is snug against the open edge of the flashing (see figure 15). Use SC1 for all round terminations and SC2 for all terminations with slip sections.

Figure 15

TERMINATIONS / SPARK ARRESTOR:

The fireplace system must be terminated with the listed round top or chase terminations. In any case, refer to the installation instructions supplied with the termination. The terminations approved for this fireplace are the RT-8DM and RTL-8DM

that can be used for flashing or chase and ET-8DM, ETO- 8DM, ETL-8DM and ETLO-8DM for chase style termination only. Figure 16 shows an RTL-8DM round top termination.

Figure 16

CAUTION: Do not seal openings on the rooftop flashing. Follow the installation instructions provided with the termination being used.

Terminations with 16” slip pipe sections are available. The RTT-8DM and RTTL-8DM are approved for flashing installations. When needed, these adjustable terminations may be used in combination with the pipe assembly to achieve the correct chimney height.

NOTE: In the rare instance there is a problem with side driven rain or wind or the chimney is not drafting properly, an ADS- 8DM Anti Draft Shield can be used with round terminations.

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. We suggest that terminations be separated at least 24 inches, center to center and stacked at vertical height difference of 18 inches (see figure 17).

Figure 17

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