Flashing Where Two Roof Lines Meet

If leaks continue to occur from ice dams consider installing roof edge heating cables.

Flashing where two roof lines meet.

Two ways to flash roof edges. 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. 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.

Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter. Open valleys have metal flashing to protect this critical area of the roof. If you don t direct water from the roof into. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.

Step flashing protects the joints between the roof deck and chimneys or dormers. Position the flashing between the two roof pitches. 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. Remember to caulk the underside of the flashing with a sealant.

Place the 2 by 4 inch piece of lumber along the center of the flashing. Val ley flashing protects the valleys where two roof planes meet. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in.