Roof Chimney Flashing Details

Flashing is installed to surround roof features such as vents chimneys and skylights.

Roof chimney flashing details.

For extra protection run a bead of urethane between the step flashing and the chimney. Chimney flashing kits are normally composed by 3 parts. More than the width of the chimney. The front back and side flashing metal.

Mc12b metal flashing options. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Mc16 skylight underlayment detail. On a chimney flashing.

Mc14a chimney flashing step type. Prebent step flashing 8 x 8 in. One common method is to lay the edge metal under the eaves membrane and over the rake. Roofers call these shingle tins.

Two ways to flash roof edges. Masonry chimneys allowing for movement. As you roof along a chimney alternate shingles and l shaped pieces of step flashing. The base of the counterflashing should include a hemmed drip edge to manage the water figure 12.

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. Mc14 chimney flashing pan type. Details roofing wrb flashing. Some lumberyards stock a dormer flashing.

The minimum depth of the reglet should be 1 in but 1 in. Aluminum generally is not used since it is not compatible with masonry mortar. Mc12a pan flashing roof to sidewall 2. Mc15 chimney cricket flashing pan type.

The front and back are custom fabricated to order for an exact fit. This section of the primary flashing extends across the face of the chimney to divert runoff around the chimney. 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. You ll need one for.

Here is a specific side view of the primary flashing head flashing detail with a shingle roof covering the base of the head flashing. Bottom before the base. Chimneys have a foundation which may be independent from the house. Counterflashing will cover the tops of the step flashing.

It extends at least 8 up the wall and at least 4 onto the roof on all sides of the chimney. Mc15a chimney cricket flashing step type. Chimney flashing flat roof copper base flashing is attached to the roof deck before installation of the roofing. In any case the roof deck.

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. Copper cap flashing then covers the upper edge.