Flashing Where Two Roof Lines Meet

Open valleys have metal flashing to protect this critical area of the roof.

Flashing where two roof lines meet.

Remember to caulk the underside of the flashing with a sealant. 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. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.

Slide the right edge of the flashing under the highest roof pitch. The valley flashing laid over the joint where the two roofs meet should overlap the step flashing at least 2 in. Step flashing protects the joints between the roof deck and chimneys or dormers. 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.

Then reshingle sliding metal step flashing behind the fascia board the trim behind the gutter. Ground zero for roof rot is often where roofs meet walls. If leaks continue to occur from ice dams consider installing roof edge heating cables. 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. Two ways to flash roof edges. If you don t direct water from the roof into.