
Ensure each subsequent chimney section is securely attached by testing as noted in Step 4. Step 6. Select the proper Security Chimneys roof flashing based on pitch of roof. Use chart below for selection: Roof Pitch Model Flat to 6/12 F10F6 6/12 to 12/12 F10F12 Next, slide roof flashing over extended chimney section that previously has been installed above the roof opening in Step 4. FTF10 flashings require flashing spacers. Slide flashing all the way down until the flashing base rests flat on th