Kick-Out Flashing

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Kick-Out Flashing

What is Kick-Out Flashing?

A specialized piece of flashing installed at the lower end of a roof-to-wall intersection to direct water away from the wall and into the gutter system, preventing water infiltration behind siding and protecting the building structure from moisture damage.

Description

Kick-out flashing is a specialized piece of flashing installed at the lower end of a roof-to-wall intersection to direct water away from the wall and into the gutter system, preventing water infiltration behind siding and protecting the building structure from moisture damage. This critical waterproofing component addresses one of the most vulnerable areas in building construction where roof runoff meets vertical wall surfaces. Proper kick-out flashing installation is essential for preventing costly water damage and maintaining building envelope integrity.

The primary purposes include directing roof runoff away from walls, preventing water infiltration behind siding, protecting building structure from moisture damage, channeling water into gutter systems, maintaining building envelope integrity, preventing rot and mold growth, and meeting building code requirements for water management.

Location and application encompass roof-to-wall intersections, dormer connections, chimney interfaces, addition tie-ins, and any location where sloped roofing meets vertical walls.

FAQs

  • What is kick-out flashing?

    Kick-out flashing is a specialized piece of flashing installed at the lower end of roof-to-wall intersections to direct water away from the wall and into the gutter system, preventing water damage.

  • Where is kick-out flashing installed?

    Kick-out flashing is installed at roof-to-wall intersections, dormer connections, chimney interfaces, and any location where sloped roofing meets vertical walls.

  • Why is kick-out flashing important?

    Kick-out flashing prevents water from running behind siding, protects against structural damage, prevents rot and mold, and ensures proper water management at critical building intersections.

  • What materials are used for kick-out flashing?

    Common materials include galvanized steel, aluminum, copper, stainless steel, and synthetic materials, selected based on durability, compatibility, and environmental conditions.

  • How is kick-out flashing installed?

    Installation involves proper positioning at the intersection, secure mechanical attachment, sealant application, integration with step flashing, and coordination with gutter systems.

  • What problems occur without kick-out flashing?

    Without kick-out flashing, water can infiltrate behind siding, cause structural rot, create mold problems, damage interior finishes, and lead to costly repairs.

  • Is kick-out flashing required by building codes?

    Many building codes now require kick-out flashing at roof-to-wall intersections, recognizing its importance in preventing water damage and maintaining building envelope integrity.

Fun Fact

Fun Fact: Kick-out flashing became widely recognized as essential after numerous water damage claims in the 1990s and 2000s revealed the consequences of omitting this critical component! The name “kick-out” comes from its function of literally kicking water out and away from the building. Some kick-out flashings are now manufactured with built-in drip edges and enhanced profiles for improved performance. Interestingly, the lack of kick-out flashing has been identified as one of the top causes of water intrusion in residential construction, leading to its inclusion in most modern building codes!

CSI Code

07 62 00

NAHB Code

760