Integrate Roof and Apply Underlayment

What happens here

The existing house roof requires modification to integrate the new covered deck structure. This involves carefully removing sections of the old shingles and underlayment where the new roof will tie in. A new weather-resistant barrier (e.g., synthetic roofing underlayment like Grayhawk) is then applied to both the modified house roof and the newly framed deck roof. This ensures proper waterproofing and a seamless transition between the existing and new roof sections, preparing for the final roofing material.

Goal: Waterproof the roof structure and integrate new and old sections