Chimney Crickets: Protecting Your Roof from Water Damage, One Tiny Slope at a Time

Last Updated: July 14, 2025

Chimneys are a classic architectural feature, adding character and warmth to homes. However, they also create a potential problem: they disrupt the smooth flow of water down a roof, leading to ponding, ice dams, and potential leaks. That’s where chimney crickets come in—small, often overlooked structures that play a vital role in protecting your roof from water damage. At Brown’s Roofing, we understand the importance of these unsung heroes and want to explain why every chimney needs a cricket.

The Problem: Chimneys and Water Runoff

When rain or snow falls on a roof, it naturally flows downhill towards the gutters. However, when water encounters a chimney, it can be diverted and slowed down. This can lead to several problems:

  • Ponding: Water can pool behind the chimney, creating a breeding ground for leaks.
  • Ice Dams: In cold climates, water can freeze behind the chimney, forming ice dams that can damage roofing materials and cause water to back up into the house.
  • Accelerated Deterioration: Constant exposure to moisture can cause the chimney and surrounding roofing materials to deteriorate more quickly.

What is a Chimney Cricket?

A chimney cricket is a small, peaked structure installed on the high side of a chimney to divert water around it. It’s essentially a miniature roof that slopes away from the chimney, creating a channel for water to flow smoothly down the roof.

Chimney crickets are typically constructed from wood or metal and covered with roofing materials that match the rest of the roof. They are most effective on chimneys that are wider than 30 inches.

A chimney cricket on a residential roof.

How Chimney Crickets Work

Chimney crickets work by creating a smooth, uninterrupted path for water to flow around the chimney. The cricket’s slope directs water away from the back of the chimney, preventing it from pooling and causing damage.

In cold climates, chimney crickets also help to prevent ice dams by allowing snow and ice to slide off the roof more easily.

Benefits of Chimney Crickets

Chimney crickets offer a range of benefits for homeowners:

  • Prevent Water Damage: The primary benefit of a chimney cricket is to prevent water damage to the roof and chimney.
  • Prevent Ice Dams: In cold climates, chimney crickets can help to prevent ice dams, which can cause significant damage to roofing materials and interior spaces.
  • Extend Roof Life: By preventing water damage and ice dams, chimney crickets can extend the life of your roof.
  • Protect Chimney Structure: Chimney crickets can also help to protect the chimney structure from water damage and deterioration.

When is a Chimney Cricket Necessary?

Chimney crickets are generally recommended for chimneys that are wider than 30 inches. However, they may also be beneficial for smaller chimneys in areas with heavy rainfall or snowfall.

A chimney with no cricket.

Installation Considerations

Installing a chimney cricket requires careful attention to detail. The cricket must be properly sized and positioned to effectively divert water around the chimney. It must also be securely attached to the roof and properly flashed to prevent leaks.

It’s important to hire a qualified roofing contractor to install a chimney cricket. A poorly installed cricket can actually cause more harm than good.

Brown’s Roofing: Your Chimney Cricket Experts

At Brown’s Roofing, we have extensive experience in designing and installing chimney crickets. Our team of skilled professionals can assess your chimney and roof, recommend the appropriate cricket size and design, and install it to the highest standards.

We use only the best materials and techniques to ensure that your chimney cricket provides long-lasting protection for your roof. We also provide ongoing maintenance and repair services to keep your chimney cricket performing optimally.

Don’t let your chimney become a source of water damage. Contact Brown’s Roofing today for a comprehensive assessment and expert chimney cricket services. We’re here to help you protect your investment and ensure a dry, secure home.