Shingles should be laid so that they create a water-shedding surface. Which characteristic helps achieve this?

The characteristic that helps achieve a water-shedding surface when laying shingles is the overlapping edges. When shingles are installed, they are designed to overlap each other in a manner that directs water downward rather than allowing it to seep underneath. This overlapping creates a barrier that effectively channels rainwater off the roof, reducing the likelihood of leaks and water damage to the underlying structure.

Unlike angled cuts, which may disrupt the flow of water, or flat surfaces that do not provide a means for water to be directed away, overlapping edges ensure a continuous protection system against water intrusion. Circular holes are typically not a feature associated with proper shingle installation; rather, they are more related to roofing elements that may require drainage or ventilation. Thus, the proper installation technique that includes overlapping edges is critical for achieving the necessary waterproofing in roofing applications.