Metal Roof Flashing Diagram

While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.

Metal roof flashing diagram.

At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and or gutter while this is a nice diagram of how these flashings work don t forget our 5 th design rule. Open valleys have metal flashing to protect this critical area of the roof. The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide. These problem areas include the edges of skylights and chimneys soil stacks vent fans and roof valleys as well as the intersection of the roof deck and dormer walls.

Eave flashings include gable flashing and eave trim either of which are often. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Most flashing is made of galvanized metal but diy ers may prefer aluminum flashing because it s easier to bend. Other flashings include transition flashing end wall and sidewall flashings and valleys see diagram on right for application.

Flashing provides the extra protection these spots need.