A roof’s valley is the area where two planes meet at a downward angle. This feature directs rainwater to the gutters, so its design is an important part of a new roof installation. Here’s an overview of two types of valleys your contractor can create to help you determine which best meets your needs and preferences.

Closed Valley Roofs

A closed valley roof has an underlayment over the entire roof deck. The underlayment lines the valley as well, with a heavy self-adhering shield placed at the joint to protect against ice and water. At the valley, the shingles are longer to connect the roof’s two planes, hiding the underlayment.

This design creates a sleek, minimalistic look that’s common in most homes. If you want to keep the attention on your unique shingles or your home’s architectural features, the simple closed valley option will achieve that. It’s also best for steep roofing that efficiently drains water without extra help.

Open Valley Roofs

An open valley has an extra lining layer in addition to the underlayment. A contractor installs a metallic U-shaped valley between the roof’s two planes. This part is usually made of aluminum, copper, or galvanized steel. The shingles run right up to the edge of this metal valley, which funnels rainwater to the gutters.

The open valley is ideal for a new roof installation with a low pitch, as the extra piece of flashing guides rainwater down to protect the structure from pooling and leaks. The lining in the valleys can also create distinct visual appeal, particularly when you choose a high-end metal like copper.

The fully licensed contractors at Ontario Exteriors will design and install the perfect roof for your home. Serving residents throughout Rochester, NY, this roofing company provides the highest level of workmanship and customer service. They use only first-rate products to create a beautiful and durable structure for your property. Explore the brands they work with on their website, or call (585) 421-0880 to request an estimate for your new roof installation.