What Is Kick Out Flashing and Why Is It Essential on Roofs?
Kick out flashing is a critical component in roofing systems designed to direct water away from vulnerable areas where a roof intersects with vertical walls. This small but essential metal flashing piece prevents water from running down the wall, which can cause leaks and structural damage over time. Proper installation of kick out flashing protects homes from water infiltration, helping to maintain the integrity of both the roof and the siding.
| Component | Purpose | Common Materials |
|---|---|---|
| Kick Out Flashing | Directs water away from roof-wall intersections | Aluminum, galvanized steel, copper |
| Diversion | Prevents water from damaging walls and foundation | N/A |
Where Is Kick Out Flashing Installed?
Kick out flashing is typically installed at the junction where the roof meets an exterior wall, especially at roof-to-wall intersections near gutters. Its primary location is at the lower edge of a step flashing run, where the roof plane changes direction or meets a vertical surface. This placement ensures water does not follow the wall and drip behind the siding or fascia, which could cause rot or mold.
How Kick Out Flashing Works to Prevent Water Damage
When it rains, water runs off roof surfaces, collecting at intersections. Without kick out flashing, rainwater can splash back onto walls or seep behind building materials, leading to moisture issues inside wall cavities. Kick out flashing diverts the water into the gutter system and away from the building, providing a controlled path for runoff.
Materials Used for Kick Out Flashing
Kick out flashing is commonly manufactured from durable metals that resist rust and corrosion:
- Aluminum: Lightweight, affordable, and corrosion-resistant, making it a popular choice in many roofing applications.
- Galvanized Steel: Strong and durable but requires proper coating to prevent rust in humid environments.
- Copper: Highly durable and aesthetic, often used in high-end or custom roofing projects, but more expensive.
Signs That Kick Out Flashing May Need Repair or Replacement
Recognizing the need to repair or replace kick out flashing early can prevent costly water damage. Key signs include:
- Visible rust or corrosion on the flashing material
- Water stains or damage on siding or interior walls near roofing junctions
- Gaps or separations between flashing and roof or wall surfaces
- Loose or damaged gutters that suggest improper water diversion
Steps to Install Kick Out Flashing Correctly
Proper installation is vital for effective water diversion. The typical installation process includes:
- Prepare the roof edge and wall intersection: Clean the area and inspect for damage.
- Position the kick out flashing: Place it where the step flashing line ends, directing water away from the wall.
- Secure the flashing: Nail or screw the flashing in place ensuring it fits snugly with adjacent materials.
- Seal joints: Use roofing sealant at seams for watertight protection.
- Integrate with gutters: Ensure the flashing guides water into the gutter system cleanly.
Common Mistakes to Avoid When Installing Kick Out Flashing
Incorrect installation can cause more harm than good. Avoid these pitfalls:
- Failing to extend the flashing far enough to direct water into gutters
- Improper sealing around edges, allowing water to leak behind flashing
- Using incompatible materials that can corrode or degrade prematurely
- Neglecting integration between kick out flashing and roof underlayment
Impact of Kick Out Flashing on Roof Longevity and Home Protection
Effective kick out flashing significantly extends a roof’s lifespan by preventing water infiltration and related damage. It also protects exterior walls, preventing mold and wood rot, and saves homeowners from costly repairs caused by water damage. Because it is a small but powerful part of roofing systems, investing in quality materials and expert installation is essential.
Maintenance Tips for Kick Out Flashing
Regular maintenance can maximize the functionality of kick out flashing:
- Inspect annually for damage, rust, or loosening
- Clear debris buildup around flashing and gutters
- Repair any gaps or holes promptly with roofing sealant
- Ensure gutter systems are clear and free-flowing
Why Homeowners Should Prioritize Kick Out Flashing Installation
Many water intrusion problems can be traced back to missing or improperly installed kick out flashing. Because it is a discreet yet essential element, ensuring kick out flashing is present and in good condition greatly enhances roof and wall durability. This investment protects the home against costly water damage and improves overall property value.