What is a flashing typically used for in roofing?

A flashing is a critical component in roofing systems designed primarily to seal and divert water away from vulnerable areas. These areas typically include joints, seams, and intersections where two different surfaces meet, such as around chimneys, vents, skylights, and other protrusions. By redirecting the flow of water, flashing helps prevent leaks and water damage, ensuring the integrity of the roof and the overall structure.

In addition to its functional role in waterproofing, flashing is usually made from materials that are durable and resistant to the elements, such as metal or plastic, which further contributes to its effectiveness in managing water flow.

The other options proposed do not accurately describe the primary purpose of flashing. While decorative elements, enhanced thermal insulation, and noise reduction are important considerations in roofing, they do not relate to the essential function of flashing in protecting roofs from water intrusion.