1. An unmanned autonomous vehicle (UAV) assessment system for visually presenting an analysis of a roof of a structure, comprising: a receiver to receive data collected by at least one sensor on an unmanned autonomous vehicle, the data including scan data of at least a portion of a roof of a structure; an analyzer to identify a plurality of defects within a sample region of the roof of the structure based on the received scan data, wherein the sample region corresponds to a sub-portion of the roof and has a defined size characteristic; a visualization system to generate a visual presentation of: at least a portion of the roof, a visible sample region overlay marking visually identifying the sample region in spatial context of the displayed portion of the roof, and a plurality of visible defect overlay markings in context of the defined size characteristic of the sample region to visually identify at least some of the plurality of defects identified within the sample region.