Flashings In The Roof Gables

Flashing is installed to surround roof features such as vents chimneys and skylights.

Flashings in the roof gables. Roof drip edge flashing at roof eaves gable ends roof drip edge flashing serves multiple functions on a building the foremost of which is to assist water in leaving the roof edge with minimum damage to other building components by directing the water off of the roof and into the gutter. Remember to caulk the underside of the flashing with a sealant. As a result most typical construction does not use any type of through the wall flashing which results in leaky wall complaints. This creates a horizontal top edge that is even with the bottom of the roof eaves.

Without gable rake flashing protection wind driven rain can begin to rot the fascia and roof deck. Gable trim designed to finish off the edge of the roof gable or rake. Flashing the seam the bottom row of vertical siding goes on the gable end of the house first. Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.

There is another place that roof flashing has now invaded. Striations and bends on the flashing provide strength and match the lines of your other edge trims. Gable rake flashing is a professional trim product that covers the exposed ends of metal roofing panels resulting in a neater appearance. If your flashing is new you may need a bonding primer.

Galvanized steel is a trusted low maintenance product that is known for durability. Install valley battens on both ends of the roof valley then attach first flashing 3 4 inches over the roof flange and another 3 4 inches over the fascia if any is present. Traditionally the flashing was installed and hidden under the siding. Click to enlarge any image.

Roof flashing on a porch roof. Now nail this first flashing at both its far ends. Step 6 install the flashing. Today the flashing is on top of the siding.

The gable trim combined with sealant provides a watertight seal for your roof system.