Pitched Roof Flashing Detail

Section 4 roof wall intersections build supplement flashings 81 roof junction detail getting flashings right between a tight area such as the main gable of a building and the ridge of a smaller gable can be difficult.

Pitched roof flashing detail.

The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas. Common pitched roof systems rely on the force of gravity and the surface friction of the roofing materials to direct the flow of water downward and outward. These systems rely on overlapping elements roofing felts shingles tiles and flashing details to redirect the rainfall. Where a flat or pitched roof over an enclosed area abuts a wall or a balcony abuts a wall cavity trays should be linked to the flashing to prevent water penetrating into an enclosed area.

Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Gibraltar drip edge flashing can be used with asphalt shingles or metal roofing panels. Roof detail pitched roof to high wall. The soaker upstands are covered using a step flashing as described earlier.

Details concrete masonry roofing wrb flashing. Variations to common side abutment details the traditional material for step and cover flashings secret gutter and soakers is lead usually code 4 or code 5 for exposed flashings and code 3 for soakers. The flashing extends up the wall at least 4. The extra kick at the bottom of the face directs run off away from the structure.

Step flashings are interwoven with the shingles and act essentially as shingles with an upturned leg to allow a transition of the vertical drainage plane of the wall to the drainage plane of the roof. Each soaker extends 100mm over the tile and 75mm up the wall. These short pieces of masonry flashings terminate outside the face of the masonry with a drip edge that also. With these installation pointers you can make sure this junction is weathertight.

The metal flashing is formed with a hook edge and cleated on 12 centers. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Stepped flashing is used where a sloped shingled roof intersects a vertical wall. Flashing joints are lapped 6 in the direction of water flow.

Above the roof a series of short masonry flashing components4 are mechanically fastened to the backup wall using a termination bar with continuous sealant5 along the top. This drip edge flashing provides protection from water damage along the eaves and rake of a roof. Two ways to flash roof edges. This detail illustrates a sloped roof terminating into a higher masonry veneer wall.