Here, we have a home with multiple layers of shingles applied on top of one another over the years. The roof appears to be five layers deep. There is a porch on the back of the house with extensive rotting wood caused by an improperly designed roof structure and improper membrane installation. The gutters on the home appear to be old and have issues with slope, leaking end caps, and mitered corners.
Incorrect Installation of Membrane that caused Water Damage on a flat surface in Knoxville TN