Mueller Corrugated Panel - Manual (Page 20)

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Details are subject to change without prior notice.
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ROOF PITCH CHANGE INSTALLATION
Details are subject to change without prior notice.
1. Apply lower panels.
2. Install the transition flashing (#1486) 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. Position the corrugated closure on the roof.
4. Attach using one lap screw, centered on corrugation, 12” O.C., through the hem of the transition flashing and
corrugated closure, into the panel. 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.
5. All trim end laps should be at least 4”. Secure to the overlapped piece with caulk and stitch screws.
6. Cap the ends of the trim by cutting and folding a tab that attaches to the gable trim. 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.
7. 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 standard screw pattern.
NOTE: Alternate trim profiles are acceptable using the screw pattern shown.