Security chimney sections do not need to be screwed together. Additional reinforcement is not necessary except in certain offset condi- tions (refer to page 14, Figure 39 ).
Step 5. The height of vertical chimney pipe supported only by the fireplace must not ex- ceed 30'. Chimney heights above 30' must be supported by a Model
Note: The Model
Install the Model
Figure 29
Note: Do not apply excessive pressure to any subsequent chimney sections following the stabilizer when installing. Ensure each subse- quent chimney section is securely attached by testing as noted in Step 4.
Step 6. Select the proper Security roof flash- ing based on pitch of roof. Use chart below for selection:
Roof Pitch | Model |
|
|
Flat to 6/12 | F8F6 |
|
|
6/12 to 12/12 | F8F12 |
|
|
FTF8 Chimney
Do Not Seal
Flashing Spacers
FTF8 Flashing
Figure 30
Note: Do not caulk or seal the ventilating openings.
Step 7. Secure flashing by nailing along the perimeter into roof using 8d nails. If shingled roof, slide upper end and sides of roof flashing under shingles (trim if necessary), seal the top and both sides of the flashing to the roof with roof caulking. Cover nail heads with roof caulk- ing (Figure 31 ).
Figure 31
Step 8. The standard Security FTF8 roof flash- ing assemblies include a storm collar. Slide the storm collar over outer chimney, rest on flashing spacers and align with top surface of flashing. Insert tab in slot, pull tight and bend tab back over slot. Seal storm collar to outer chimney with roof caulking or mastic around entire circumference of pipe. Also add extra roof caulking to the tab/slot area to seal com- pletely against water penetration (Figure 32 ). Check all joints very carefully to ensure no water intrusion can take place.
Locking Band
Step 9. Security Chimneys locking bands, Model FLB, may be required if the chimney extends too high above the roof flashing. As a general rule, if the chimney extends more than 6' above the roof flashing, the use of locking bands is advisable to strengthen the chimney assembly. Align the locking band at the chim- ney joint. Locking bands wrap around pipe joints equally covering the joints of both pipe sections. Use the nut provided and TIGHTEN snugly. Do not overtighten as this might dam- age the chimney section (refer to Figure 32 ).
Note: If chimney extends more than 8' above roof surface, guy wires are also recommended. Use three (3) guy wires, attach to locking band assembly, extend and secure to roof in a trian- gular pattern (Figure 33 ). Guy wires are not supplied by the manufacturer.
Roof Ridge
120°
Figure 33
Step 10. Using a FTF8-CTD Round Termination:
1.Hold the
2.Center inner slip section in inner flue pipe- slip down.
3.Center outer locking section over outer flue pipe. Push down until locking tabs are firmly engaged.
CTD
Next, slide roof flashing over extended chimney section that previously has been installed above the roof opening in Step 4. FTF8 flashings require flashing spacers. Slide flashing all the way down until the flashing base rests flat on the roof (Figure 30 ). Again, check the vertical
Waterproof Caulk
Termination
Figure 34
Chimney
10
position of the chimney and the 2" minimum air space to combustibles.
Figure 32
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
4.Pull up slightly on CTD to ensure locking joint has firmly engaged.