How to Install a Rake Mold on a Metal Roof

Rake molding, often known as gable trim, is important for protecting the rake or gable edge of a metal roof from the elements. Without the trim in place, rain can leak under the edge of the paneling and do damage to the wood substrate underneath. Installing gable trim is a simple process, consisting of little more than fastening the metal pieces to the edge of the roof.

Butyl tape
Gable trim
Wood screws
Drill

Instructions

- 1
  Stick a strip of double-sided butyl tape along the rake edge of the roofing panels, running all the way from ridge to eaves.
- 2
  Place a piece of gable trim over the lower corner of the rake, overlapping the butyl tape. Screw it in place with two wood screws, one on top and one on the side of the trim, every 2 feet along its length.
- 3
  Place the next piece of trim over the rake just above the first one, overlapping it by 4 inches. Secure it to the roof just as before and continue laying trim until you reach the ridge.

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