Roof Chimney Flashing Details

Mc12a pan flashing roof to sidewall 2.

Roof chimney flashing details.

Mc14 chimney flashing pan type. Copper cap flashing then covers the upper edge. The base of the counterflashing should include a hemmed drip edge to manage the water figure 12. Roofers call these shingle tins.

Prebent step flashing 8 x 8 in. Bottom before the base. Two ways to flash roof edges. In any case the roof deck.

Press the flashing into the urethane to achieve a positive seal. Masonry chimneys allowing for movement. Here is a specific side view of the primary flashing head flashing detail with a shingle roof covering the base of the head flashing. More than the width of the chimney.

Mc15 chimney cricket flashing pan type. 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. On a chimney flashing.

The front and back are custom fabricated to order for an exact fit. Mc14a chimney flashing step type. 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. You ll need one for.

The minimum depth of the reglet should be 1 in but 1 in. Chimney flashing flat roof copper base flashing is attached to the roof deck before installation of the roofing. As you roof along a chimney alternate shingles and l shaped pieces of step flashing. Chimneys have a foundation which may be independent from the house.

The front back and side flashing metal. Order about 12 in. This section of the primary flashing extends across the face of the chimney to divert runoff around the chimney. In addition to the saddle you ll need the following sheet metal parts see figure a.

Aluminum generally is not used since it is not compatible with masonry mortar. Mc15a chimney cricket flashing step type. Flashing is installed to surround roof features such as vents chimneys and skylights. Counterflashing will cover the tops of the step flashing.

For extra protection run a bead of urethane between the step flashing and the chimney. Some lumberyards stock a dormer flashing. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. One common method is to lay the edge metal under the eaves membrane and over the rake.

Mc16 skylight underlayment detail. Chimney flashing kits are normally composed by 3 parts.