What are Valleys?

Valleys on a roof are the V-shaped channels that are formed where two planes meet. These valleys are critical components of your roofing system, as they channel water away from the structure and prevent leaks. However, valleys can also be vulnerable to water damage if they are not properly installed and maintained.

One of the key ways to protect your valleys from water damage is through proper cleating and hand seaming. Cleating involves attaching the valley flashing to the roof using metal clips or cleats, while hand seaming refers to the process of sealing the flashing together using a hand-held seaming tool.

Cleating and hand seaming valleys is important because it allows for proper expansion and contraction during temperature changes. Without proper cleating, the valley flashing can become loose and allow water to seep through, leading to leaks and damage to the structure. Hand seaming helps to create a seamless and watertight seal, further protecting your home from water damage.

In addition to protecting your home from water damage, proper cleating and hand seaming of valleys can also increase the lifespan of your roof. By ensuring that the flashing is securely attached and properly sealed, you can prevent the need for costly repairs and extend the life of your roof.