Mueller U-Panel - Manual (Page 26)

The uphill flashing will be 4” wider than the width of the
curb (2” on each side). Cut an 1/8” slot in the two uphill
corners of the panel slightly wider than 2 1/16”, so the
uphill flashing can slide through the two slots.
26
CHIMNEY INSTALLATION
Details are subject to change without prior notice.
CHIMNEY FLASHING - UPHILL AND DOWNHILL
1. Trim both ends of the uphill and downhill sides of the
flashing as indicated.
2. Slide the uphill flashing into the slots of the roofing and
apply liberal amount of tube caulk.
NOTE: Alternate trim profiles are acceptable using the screw pattern shown.
DOWNHILL
UPHILL
UPHILL
NOTE: To comply with Texas Windstorm Certification Testing, #12x11
SDT Type A screws must be used in place of the #9 Woodgrip screws.