Copper Chimney Counter Flashing

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.

Copper chimney counter flashing.

Step 1 cut the mortar joint. The installation of counter flashing against a chimney works together with the base and step flashing to form a waterproof system for your roof. A second layer of metal is embedded in the chimney mortar joints and folded down to cover the top of the step flashing. Underbend the flashing pieces so that.

Begin by marking the stock with a nail or a. Such a system usually consists of copper counterflashing and base flashing in conjunction with roof composition flashing or coping. To learn more about copper flashing please check out. The first two layers are called base flashing and step flashing.

In good quality work the top is bent and set 1 to 11 2 inches into a mortar joint reglet. Not only will it prevent leaks but it will also extend the life of your chimney s masonry. There are a couple good reasons. Counter cap flashings bottom the bottom cap flashing or counter flashing is a single piece of metal that covers the vertical portion of the base flashing.

Chimney flashing kits are normally composed by 3 parts. Water sheds from off the brick chimney surfaces down over the outside edge of the step flashing. Copper generally comes in 3 ft wide by 8 ft long sheets. Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney.

Cap flashings should be fastened to the chimney only. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. A single flue chimney flashing kit runs about 250 w freight. Next comes the counterflashing.

The front and back are custom fabricated to order for an exact fit. All you need to complete this project are a few tools and a little know how. Copper flashing is used wherever a wall intersects a roof. Although i ve made up hundreds of these custom chimney flashing kits for as little as 20 sq for 20oz copper counter flashing as indicated by the final weight plus freight if you are not local to us.

The counterflashing diverts water to the base flashing which in turn diverts it to the composition flashing. The first is called step flashing. Use a hammer and a dull punch to mark the various bends on both ends of the stock. Proper flashing around a chimney includes two layers.

The front back and side flashing metal.