Installation Guide
21
Caulk Gun
Measuring Tape
Metal Shears
Roofing Sealant
Safety Equipment
Plastic Underlayment 
Flashing
TOOLS & PARTS
Draw a horizontal line across the center of the hole in 
the roof, running side to side the entire width of the 
Formable Flashing.
1
Cut a slit through the METAL ROOF PANEL ONLY 
across the horizontal line. Use gloves for safety.
2
With your safety gloves on, be sure your cut is 
smooth and free of sharp edges.
3
2
Slide the Plastic Underlayment Flashing through the 
slit under the upper metal panel and felt paper. 
Then down under the lower metal panel. Be sure the 
opening is aligned with the cut hole.
4
Run a continuous bead of sealant between the 
Underlament Flashing and the next layer of roofing 
around the opening.
5
4
Cut Slit In Roof Panel
Section-12b
Metal Roofing Installation-
Using Formable Aluminum Flashing 
Plastic Underlayment Flashing fully 
inserted underneath metal roof
4
5










