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Apply Top Flashing and Drip Cap

2:23
2:59
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Learn window and flashing installation. Learn how to keep the water out💪 #window #flashing #learn

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What happens here

The final step in flashing is to install the top piece of flashing tape. This piece should be installed *under* the top flap of the house wrap, ensuring it overlaps the side flashing tapes. For new construction windows, a drip cap is also installed directly above the window, extending over the top flange and the house wrap. The drip cap provides an additional layer of protection, diverting water away from the top of the window and preventing any flashing failures from leading to water intrusion.

Goal: Complete the flashing with a top piece and add a drip cap for superior water diversion.

Tools and materials

  • Drip Cap N/A — Diverting water from the top of the window
  • Flashing Tape N/A — Sealing the top of the window, under the house wrap
  • Water Sprayer N/A — Demonstrating water diversion by the drip cap

What they say

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past the bottom of the window. This will cover your flange and extend below your window. Now, install your top piece under the house wrap. In this case, you could flap this over and be done. New construction windows do have a flange, but a smarter idea is to install a drip cap. The drip cap ensures if you ever have any flashing failure, water will divert, hit the cap, and still run down the side of the window. As you see as water makes it into the window, it comes out these vents. If

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