Integrating Flashing with House Wrap

What happens here

At the junction where the new patio roof meets the existing wall, carefully cut back the house wrap. Lift the cut house wrap and slide flashing (a waterproof membrane) underneath it, ensuring it extends over the drip apron of the new roof. The builder demonstrates how this overlapping method ensures that any water running down the house wrap is diverted onto the roof and away from the structure, preventing leaks.

Goal: Create a watertight seal at the roof-to-wall intersection.