Roof Water Diverters

Roof drainage management has gotten complicated with all the diverter types, placement considerations, and installation methods flying around. As someone who has solved every roof drainage problem, I learned everything there is to know about directing water flow. Today, I will share it all with you.

What Diverters Do

Probably should have led with this section, honestly—water diverters redirect roof runoff away from problem areas like doorways or wall intersections.

Common Applications

• Above entry doors without overhead cover
• Where valleys dump onto lower roof sections
• At dormers and wall intersections
• Over windows in high-runoff areas

Types

• Kickout Flashing: Directs water into gutter
• Rain Diverters: V-shaped metal strips above doorways
• Custom Flashing: Made for specific situations

Installation Tips

• Install under shingles, over underlayment
• Ensure proper slope for water flow
• Seal penetrations carefully
• Extend past problem area sufficiently