Mueller AP Panel - Manual (Page 25)

25
ROOF PITCH CHANGE INSTALLATION
Details are subject to change without prior notice.
1. Apply lower panels.
2. Install the transition flashing (#1487) making sure the bottom portion of the flashing is at the same pitch
as the lower panels. Attach to decking 1” from top of flashing with wafer head screws on 5’ centers.
3. Field cut enough metal closures (#0322) to complete application.
4. Slide the 5/8” lip of the field cut metal closure into the receiver hem of the transition flashing and position
the closure on the roof.
5. Attach using one woodgrip screw, centered between each rib, through the hem of the transition flashing and metal
closure, into the decking. Care must be taken not to over-tighten the screws as this will distort the trim and closure.
The screw hole can be pre-drilled, if desired.
6. All end laps should be at least 4”. Remove 4” of the hem on the overlapping piece and secure to the overlapped
piece with caulk and stitch screws.
7. Cap the ends of the trim by cutting and folding a tab that attaches to the gable trim. The hem must be removed
before a fold is made. Capping is usually easier to do before the trim is installed. If done after the trim is installed,
be sure and leave 6” of the trim overhanging to allow enough material for the cut and folds.
8. Before applying the upper panels, place a row of butyl tape continuously along the trim at a point where the
screws holding the lower end of the upper panel will go through the butyl tape. This is usually 4” uphill from the
bottom of the upper sheet. Use end lap screw pattern.
NOTE: Alternate trim profiles are acceptable using the screw pattern shown.
NOTE: To comply with Texas
Windstorm Certification Testing,
#12x11 SDT Type A screws must
be used in place of the #9
Woodgrip screws.