Trek SSDVPF-CNE, SSDVPF-CNM, SSDVST-CNE, SSDVST-CNM , , Figure 22, Figure 23, Figure 26, Figure 24, , , Figure 25

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

 SV4.5VF

Firestop / spacer

SV4.5SU

Support Strap

8 ft. (2.4 M)

Maximum

SV4.5SP

Support Plate

Ceiling Framing

Secured

to Vent with

Appropriate

Fasteners

1” (25.4 mm)

Minimum

Clearance to

Combustibles

When using

secure Flex, use

Firestop/Spacer

SF4.5VF

Framing Dimensions for Roof

Inches (millimeters)

Pitch C D

0/12 10-1/2 in.

(267 mm)

10-1/2 in.

(267 mm)

6/12 10-1/2 in.

(267 mm)

12 in.

(305 mm)

12/12 10-1/2 in.

(267 mm)

17-3/4 in.

(451 mm)

Figure 24 - Roof Framing

Figure 25

Storm

Collar

Figure 26

Flashing

7-5/8”

(194 mm)

4-13/16

(122 mm)

(206 mm)

If the vent system extends more than 5 feet

(1.5 m) above the roof ﬂ ashing, stabilizers may

be necessary. Additional screws may be used

at section joints for added stability. Guide wires

may be attached to the joint for additional sup-

port on multiple joint conﬁ gurations.

G. Continue installation of horizontal / inclined

sections - Continue with the installation of the

straight vent sections in horizontal / inclined run

as described in Step C. Install support straps

every 5 feet (1.52 m) along horizontal / inclined

vent runs using conventional plumber’s tape.

See Page 19, Figure 32. It is very important

that the horizontal / inclined run be maintained

in a straight (no dips) and recommended to

be in a slightly elevated plane, in a direction

away from the ﬁ replace of 1/4" rise per foot (20

mm per meter) which is ideal, though rise per

foot run ratios that are smaller are acceptable

all the way down to at or near level.

F. Change vent direction to horizontal / inclined

run - At transition from or to a horizontal / in-

clined run, install the SV4.5E45 and SV4.5E90

elbows in the same manner as the straight vent

sections. The elbows feature a twist section to

allow them to be routed about the center axis

of their initial collar section to align with the

required direction of the next vent run element.

Twist elbow sections in a clockwise direction

only so as to avoid the possibility of unlocking

any of the previously connected vent sections.

See Figure 23.

Use a carpenter’s level to measure from a

constant surface and adjust the support straps

as necessary.

It is important to maintain the required clear-

ances to combustibles: 1" (25 mm) at all sides

for all vertical runs; and 3" (76 mm) at the top,

1" (25 mm) at sides, and 1" (25 mm) at the

bottom for all horizontal / inclined runs.

H. Frame roof opening - Identify location for

vent at the roof. Cut and/or frame opening per

Roof Framing Chart and Figure 24.

Figure 23

Swivel Joint

(360° swivel)

SV4.5E45

45° Elbow)

Swivel Joint

(360° swivel)

SV4.5E90

90° Elbow)

SV4.5FA or

SV4.5FB Flashing

and SV4.5SC

Storm Collar

SV4.5CGV-1

Termination

8-1/8"

K. Install the vertical termination - The ﬁ nal

Step involves installation of the SV4.5CGV-1

Vertical Termination. Extend the vent sections

to the height as shown in the "Vertical vent

termination section" (Page 7, Figure 4). The

SV4.5CGV-1 Vertical Termination (Figure 26)

can be installed in the exact same fashion as any

other Secure Vent section. Align the termination

over the end of the previously installed section,

adjusting the radial alignment until the four

locking dimples of the termination are aligned

with the inlets of the four incline channels of the

last vent section. Push the termination down

until it fully engages, then twist the termination

clockwise running the dimples down and along

the incline channels until they are seated at the

end of the channels.

I. Install the roof ﬂ ashing - Extend the vent

sections through the roof structure. Install the

roof ﬂ ashing over the vent section and position

such that the vent column rises vertically (use

carpenters level - see Figure 25). Nail along

perimeter to secure ﬂ ashing or adjust rooﬁ ng

to overlap the ﬂ ashing edges at top and sides

only and trim where necessary. Seal the top

and both sides of the ﬂ ashing with waterproof

caulking.

J. Install the storm collar - Install the storm

collar, supplied with the ﬂ ashing, over the vent /

ﬂ ashing joint. See Figure 25. Loosen the storm

collar screw. Slide collar down until it meets

the top of the ﬂ ashing. Tighten the adjusting

screw. Apply non-combustible caulking or

mastic around the circumference of the joint

to provide a water tight seal.

Figure 22