Roof Chimney Flashing Details

Roofers call these shingle tins.

Roof chimney flashing details. Mc15a chimney cricket flashing step type. Two ways to flash roof edges. Flashing is installed to surround roof features such as vents chimneys and skylights. This section of the primary flashing extends across the face of the chimney to divert runoff around the chimney.

Mc12a pan flashing roof to sidewall 2. One common method is to lay the edge metal under the eaves membrane and over the rake. As you roof along a chimney alternate shingles and l shaped pieces of step flashing. Here is a specific side view of the primary flashing head flashing detail with a shingle roof covering the base of the head flashing.

Prebent step flashing 8 x 8 in. The base of the counterflashing should include a hemmed drip edge to manage the water figure 12. Chimney flashing kits are normally composed by 3 parts. Kits made from copper lead coated copper freedom gray and tcsii are always soldered while aluminum parts are riveted and can be sealed before installation.

Details roofing wrb flashing. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Mc14a chimney flashing step type. On a chimney flashing.

The front and back are custom fabricated to order for an exact fit. You ll need one for. Aluminum generally is not used since it is not compatible with masonry mortar. Chimney flashing flat roof copper base flashing is attached to the roof deck before installation of the roofing.

The flashing should extend away from the chimney past the base or step flashing before taking a sharp bend downward to create a capillary break an air space that will not allow capillary suction of water from below. Mc12b metal flashing options. In addition to the saddle you ll need the following sheet metal parts see figure a. Mc16 skylight underlayment detail.

The front back and side flashing metal. Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer. Mc15 chimney cricket flashing pan type. More than the width of the chimney.

Chimneys have a foundation which may be independent from the house. In any case the roof deck. Masonry chimneys allowing for movement. The minimum depth of the reglet should be 1 in but 1 in.

Press the flashing into the urethane to achieve a positive seal. It extends at least 8 up the wall and at least 4 onto the roof on all sides of the chimney. Order about 12 in. For extra protection run a bead of urethane between the step flashing and the chimney.

Mc14 chimney flashing pan type. Copper cap flashing then covers the upper edge.