Understanding Kickout Flashing: Importance and Remedies

Understanding Kickout Flashing: Importance and Remedies


Kickout flashing is a critical component in the protection of a building’s exterior from water damage. Often overlooked, its absence can lead to significant issues such as water intrusion, rot, and mold growth. In this blog post, we will delve into what kickout flashing is, why it’s essential, and what steps can be taken if it’s not present.

What is Kickout Flashing?



Kickout flashing, also known as diverter flashing, is a type of roof flashing designed to direct water away from the junction between a sloping roof and a vertical wall. It is typically installed at the lower end of a roof-wall intersection, where water runoff could otherwise be channeled down the wall, potentially causing damage.

Importance of Kickout Flashing:

1. Preventing Water Intrusion: The primary purpose of kickout flashing is to prevent water from penetrating the building envelope. Without it, rainwater can run down the wall, leading to leaks, moisture damage, and potential structural issues.

2. Protecting Against Rot and Mold: Persistent water intrusion can result in wood rot and mold growth within the wall cavity. These issues can compromise the structural integrity of the building and pose health risks to its occupants.

3. Preserving Aesthetic Appeal: Kickout flashing plays a crucial role in maintaining the aesthetic appearance of a building. Water stains and damage can be unsightly, diminishing the overall visual appeal.

What to Do If Kickout Flashing Is Absent:

1. Assessment: Start by assessing the areas around your roof-wall intersections to determine if kickout flashing is missing. Look for signs of water damage, such as discoloration, peeling paint, or mold growth.

2. Consult a Professional: If you suspect that kickout flashing is absent or improperly installed, it’s advisable to consult with a roofing professional. They can conduct a thorough inspection and provide recommendations for remediation.

3. Installation of Kickout Flashing: If kickout flashing is indeed missing, the recommended course of action is to install it promptly. This involves cutting into the existing roofing and wall materials to integrate the flashing properly. A qualified contractor can ensure a proper and effective installation.

4. Addressing Water Damage: In cases where water damage has already occurred due to the absence of kickout flashing, it’s crucial to address the damage promptly. This may involve repairing or replacing damaged materials and addressing any underlying issues contributing to water intrusion.

Kickout flashing is a small yet crucial component in protecting your home or building from water damage. Understanding its importance and taking proactive measures, such as installation or remediation, can save you from costly repairs and preserve the integrity and aesthetics of your property. If you suspect issues related to kickout flashing, don’t hesitate to seek professional guidance to ensure a thorough assessment and appropriate remediation.