Transition Flashing Installation

Transition Flashing Installation Guide

1. Install bottom roofing panels first.

2. After bottom roofing panels have been installed, set one piece of transition flashing down where the top portion

(non-hemmed) of the transition flashing lies flat on the upper roof.

3. Measure 1 1/2” from bottom edge of transition flashing.

4. Repeat step 3 on the opposite end of the roof transition.

5. Remove transition flashing and pop a chalk line on line previous marked indicating where outside closures are

going to be placed.

6. Install outside closures.

7. After outside closures are installed, install the transition flashing over the outside closures.

8. Fasten transition flashing using #9 x 2” Woodgrip fasteners through each major rib of the roofing panel.

9. When overlapping transition flashings, flashings should be attached immediately adjacent to a major rib and not

in between two major ribs.

10. Once the bottom half of the transition flashing has been installed completely, install the upper roofing panels next

overtop the top part of the transition flashing.

11. Hold roofing panels back two inches from the centerline of the transition flashing.

12. Leave bottom row of screws uninstalled so inside closures can be installed later.

13. Once upper roof panels have been installed (except for bottom row of screws), insert inside closures 1” from

edge of roofing panel the entire length.

14. Install bottom row of screws into the metal panel catching the inside closures to hold them into place.

15. Bottom row of screws should be fastened through every major rib.


Outside Closures, Inside Closures (1 closure = 3’ of coverage)