Proper Roof Flashing Material

Don t mistake this condition for headwall flashing routed beneath the shingles and call it a defect.

Proper roof flashing material. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Components such as pipe flashings for sewer vents that protrude through the roof valleys and ridges are available off the shelf in any of these materials. While some materials are stronger and others cost less aluminum remains the most popular choice of flashing. Aluminum flashing is easy for roofing professionals to form and is lightweight.

Copper stainless steel lead and aluminum are the most common materials used. However aluminum must be. 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. It is wise to choose flashing components that will have the same degree of longevity as the rest of your roof.

Flashing should overlap the roof covering material but on asphalt shingle roofs for aesthetic reasons the part of the headwall flashing that extends down over asphalt shingles is often covered with a course of shingle tabs. Val ley flashing protects the valleys where two roof planes meet. It s also highly durable and has. One common method is to lay the edge metal under the eaves membrane and over the rake.

Here are just a few of the most common options. Two ways to flash roof edges. Details concrete masonry roofing wrb flashing. However roofing professionals in north america now prefer other materials.