Chimney Caps: A Small Part With Big Protection

A chimney cap is one of the least expensive parts of a roof system and one of the most useful. It sits on top of the flue and keeps out what does not belong there. Here is why we recommend a custom chimney cap on almost every home with a chimney.

It Keeps Water Out

Rain and snow that fall straight into a flue can damage the liner, the masonry, and the framing around the chimney. In freeze-thaw weather, water that soaks into masonry expands as it freezes and slowly breaks it apart. A cap sheds that water before it gets in.

It Blocks Animals and Debris

Birds, squirrels, and other animals look for sheltered spots to nest, and an open flue is an easy target. Leaves and twigs also collect inside. Either one can block the flue and keep smoke from venting properly, which is a safety problem as well as a nuisance.

It Helps Contain Sparks

Caps with mesh sides help keep embers from landing on the roof or on nearby trees and brush, which matters in dry summers.

It Can Reduce Downdrafts

A cap helps shield the flue from wind that pushes smoke back down into the house, especially on chimneys near taller rooflines or trees.

Choosing a Material

  • Stainless steel: strong corrosion resistance and a clean look
  • Painted steel: can be matched to your roof and trim color
  • Copper: a premium finish that weathers to a natural patina

Custom Fit Versus Off the Shelf

Off-the-shelf caps fit standard round or square flues. Many chimneys, especially framed chases and multi-flue masonry, need a cap built to their exact size. A custom cap also lets us match the style of the house and the roof.

Signs Your Cap Needs Attention

Rust streaks on the chimney, a loose or tilted cap, torn mesh, or water stains near the fireplace all mean it is time to have the cap looked at.

Getting a Cap Installed

We measure, fabricate, and install caps in stainless steel, painted steel, and copper. See our chimney cap installation process, or call us at (801) 618-4594 for a free estimate on a cap for your home.