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How a cricket on your roof can help prevent problems.

A cricket is a small ridge structure designed to divert water away from chimneys, vents, or other obstructions on a roof. A cricket is needed on a roof if the chimney is 30 inches or more.

The primary purpose of a cricket is to prevent water from pooling behind obstacles such as chimneys or vents, where it could potentially seep into the roof and cause damage. By diverting water around these obstacles, a cricket helps to ensure proper drainage and minimize the risk of water infiltration into the roof structure. A cricket on the roof can help prevent problems associated with water.

Here's why you might need a cricket on your roof:

  1. Water diversion: Crickets are particularly important on roofs with chimneys, where water runoff can accumulate and cause problems. Without a cricket, water may collect behind the chimney, leading to leaks, rot, and other forms of water damage.

  2. Preventing ponding: Crickets help prevent ponding or standing water on the roof surface. Standing water can accelerate roof deterioration and increase the risk of leaks, especially in areas with heavy rainfall or snow accumulation.

  3. Preserving roof integrity: By directing water away from vulnerable areas, crickets contribute to the overall integrity and longevity of the roof structure. They help maintain the effectiveness of the roofing system and reduce the likelihood of costly repairs due to water damage.

  4. Code compliance: In many building codes and roofing standards, crickets are required for certain roof configurations, particularly those with obstructions like chimneys or vents. Installing crickets ensures compliance with these regulations and helps maintain the structural integrity of the roof.

Cricket on the roof can help alleviate problems with water.
Diagram of a cricket on a roof.

Overall, crickets play a crucial role in preventing water damage and maintaining the functionality of a roof. They are an essential component of effective roof design and construction, particularly in areas prone to heavy precipitation or where roof obstructions are present.


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