Stepped Roof Valley

Extra nails may increase the risk of leaks.

Stepped roof valley.

A scaffold tower has been used for access in this video. Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss. A combination of a gable and a hip roof pitched roof without changes to the walls with the hipped part at the top and the gable section. 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.

Stop nailing 6 inches from the center. Only nail at the edges with only enough nails to hold it in place. See also roof pitch crow stepped corbie stepped stepped gable. This video shows how to repoint a lead roof valley.

You can see in our roof valley photo left that there has been a history of. Installing step flashing on a roof valley is an important step when trying to prevent water damage to your roof. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off. To secure the roof valley flashing nail it down carefully.

Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. This is an easy process if done correctly but if it is not done properly it will cause major roof damage which will eventually lead to water dripping inside of the house ruining the interior walls and ceilings as well. Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Shingle the other side of the valley the same way.

Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. Where two roof valleys meet for example above a gable dormer a soldered joint is likely to break from the movement. A gable roof with its end parapet walls below extended slightly upwards and shaped to resemble steps.

Never try and work on a roof from a ladder as a. Then starting at the base of the valley center your first piece of flashing in the valley. Overlap metal roof valley sections by 12 inches and seal the lap with a flexible sealant such as polyurethane or butyl on roofs shallower than 5 12.