Flashing Where Two Roof Lines Meet

If you don t direct water from the roof into.

Flashing where two roof lines meet.

Val ley flashing protects the valleys where two roof planes meet. Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. 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.

Position the flashing between the two roof pitches. Step flashing protects the joints between the roof deck and chimneys or dormers. Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies. Ground zero for roof rot is often where roofs meet walls.

Place the 2 by 4 inch piece of lumber along the center of the flashing. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. If leaks continue to occur from ice dams consider installing roof edge heating cables. Two ways to flash roof edges.

Now nail this first flashing at both its far ends. This material is available with a v or w shaped profile and is placed over the top of the building felt before the roof s finishing material is installed. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.