Seal First Level With Caulk Or Butyl Tape; Bend End Tabs, Apply Butyl Tape To Flashing - Trane CSAA Installation, Operation And Maintenance Manual

Figure 57. Sizes 3 to 35 (des seq M or later) , non-hurricane units (part 2 of 2)
Sizes 3 to 35 (Design Sequence L or earlier)
and 40 to 50
1. Ensure that first level roof section is properly sealed
with Butyl tape (item 8) and/or caulk (Item 14) at the
ends. See Figure 58.
Figure 58. Seal first level with caulk or Butyl tape
Confirm Butyl
tape or caulk fills
area between roof
and second level unit.
2. Bend end tabs by hand and apply Butyl tape (Item 8) to
flashing. See Figure 59.
CLCH-SVX07K-EN
Figure 59. Bend end tabs, apply Butyl tape to flashing
3. Secure to base rail with screws (Item 4).
4. Apply caulk (Item 14) to ensure a water tight seal. See
Figure 60.
Installation - Mechanical
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