Copper Chimney Counter Flashing

Such a system usually consists of copper counterflashing and base flashing in conjunction with roof composition flashing or coping.

Copper chimney counter flashing.

Cap flashings should be fastened to the chimney only. A single flue chimney flashing kit runs about 250 w freight. The counter flashing extends from the layer of bricks and then bends down overlaying the top edges of the primary step flashing. A second layer of metal is embedded in the chimney mortar joints and folded down to cover the top of the step flashing.

Step 1 cut the mortar joint. Not only will it prevent leaks but it will also extend the life of your chimney s masonry. Copper flashing is used wherever a wall intersects a roof. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.

Underbend the flashing pieces so that. Use a hammer and a dull punch to mark the various bends on both ends of the stock. In good quality work the top is bent and set 1 to 11 2 inches into a mortar joint reglet. Copper generally comes in 3 ft wide by 8 ft long sheets.

All you need to complete this project are a few tools and a little know how. To learn more about copper flashing please check out. The front back and side flashing metal. Begin by marking the stock with a nail or a.

Proper flashing around a chimney includes two layers. Water sheds from off the brick chimney surfaces down over the outside edge of the step flashing. 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. The first is called step flashing.

There are a couple good reasons. 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. Next comes the counterflashing. 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.

The counterflashing diverts water to the base flashing which in turn diverts it to the composition flashing. Chimney flashing kits are normally composed by 3 parts. The primary flashing the step flashing built into each course of roofing materials is best not connected directly to the counter flashing materials. The installation of counter flashing against a chimney works together with the base and step flashing to form a waterproof system for your roof.

The front and back are custom fabricated to order for an exact fit.