Copper Chimney Counter Flashing

A single flue chimney flashing kit runs about 250 w freight.

Copper chimney counter flashing.

The counterflashing diverts water to the base flashing which in turn diverts it to the composition flashing. The first two layers are called base flashing and step flashing. Cap flashings should be fastened to the chimney only. 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. 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. Underbend the flashing pieces so that. 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.

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. Such a system usually consists of copper counterflashing and base flashing in conjunction with roof composition flashing or coping. All you need to complete this project are a few tools and a little know how.

There are a couple good reasons. Step 1 cut the mortar joint. 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. Not only will it prevent leaks but it will also extend the life of your chimney s masonry.

The counter flashing extends from the layer of bricks and then bends down overlaying the top edges of the primary step flashing. Copper flashing is used wherever a wall intersects a roof. The term reglet flashing refers to an installation method for counter flashing not a separate layer. Chimney flashing kits are normally composed by 3 parts.

Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. The primary flashing the step flashing built into each course of roofing materials is best not connected directly to the counter flashing materials. A second layer of metal is embedded in the chimney mortar joints and folded down to cover the top of the step flashing. To learn more about copper flashing please check out.

The first is called step flashing. Begin by marking the stock with a nail or a. The front back and side flashing metal. Copper generally comes in 3 ft wide by 8 ft long sheets.

Next comes the counterflashing.