What Is A Flue Cap

A single flue chimney cap will sit on your existing flue and have a flange that will overhang the flue.

What is a flue cap.

Flue stretcher chimney cap. Sheet metal is commonly used to make a flue cap. Another option is a multi flue chimney cap. Single flue chimneys with extended flues.

On the sides of the flange there is four or more bolts attached to the cap to pressure fit the chimney cap to the flue. Too thin cracked leaky missing an expansion joint at the flue tile and lacking a drip edge projection over the chimney top. Most multi flue chimney caps are made custom to your specific chimney. All of the smoke from your fireplace is directed out through the chimney flue on top of your roof which contains a hole that is at least one square foot wide.

Chimney caps that slip into the flue finding a chimney cap for this type of flue is also very simple. Once you have. The right chimney cap fits the shape and size of your flue otherwise the cap itself serves little to no purpose. This particular chimney cap is defective.

Just measure the inside diameter of your flue and search for a cap with that diameter. Single flue chimneys with flexible metal liners. Some chimney flue caps are elaborate others are basic but none are solely for decoration. Without a cover.

The inner diameter is the only measurement you need when capping a metal chimney liner. They can be easily removed to clean the chimney and are available in many styles to compliment a home s decor. A flue cap is typically made of sheet metal and some type of screen. In our photo at left the chimney cap also called a mortar cap is the gray concrete visible around the projecting flue tiles at the top of the chimney.

For oval shaped flues make sure the cap is designed for the shape. Chimney flue caps have a big job to take care of. All flue shapes for this type of chimney typically need a cap that attaches with either clamps or screws. When choosing a flue cap decide on the style that best compliments the home.