Our Blog

June 6, 2023

What Are the Parts of a Roof?

At Eiseman Construction, we focus on the protective parts of your home – the siding and, of course, the roof. We have been building and replacing roofs since our founding in 1968.

When a roof is working correctly, most of us don’t give it a second thought. Yet a roof is one of the most critical components of any home or building. It protects us from the elements and provides us with a safe and comfortable living space. However, a roof is not just a single entity; it is made up of many different parts that work together to form a roofing system. 

Understanding how the parts of a roof work together can help homeowners better spot when things are going wrong. Stepping in to correct issues before they become a full-blown emergency can save you time, money, and effort in the long run.

Here are the parts of a roofing system.

The underlayment is a layer of material installed on top of the roof deck and underneath the shingles. It is usually made of water-resistant material such as felt or synthetic fabric. The purpose of the underlayment is to provide an additional layer of protection against water infiltration. It also helps to prevent wind-driven rain from penetrating the roof system.

Shingles are the most visible part of a roofing system. They are the overlapping tiles or panels that cover the roof. Shingles are typically made of asphalt, wood, metal, or other materials. They are designed to shed water and protect the underlying layers of the roofing system from the elements.

Flashing is a metal or plastic material that is installed around roof penetrations such as chimneys, vents, and skylights. It is designed to prevent water from entering the roofing system at these vulnerable points. Flashing is typically installed underneath the shingles and is secured with roofing cement or caulking.

Vents are an essential part of a roofing system. They are installed to allow air to circulate through the attic or crawlspace, which helps to regulate temperature and moisture levels. There are several types of vents, including ridge vents, soffit vents, gable vents, and turbine vents.

Gutters are installed along the edges of a roof to collect rainwater and direct it away from the building. They are typically made of aluminum, copper, or other metals. Gutters are important because they help prevent water damage to the building’s foundation, walls, and landscaping.

Roof Diagram

It is important to understand how the different components of a roofing system work together to protect your home or building from the elements. Each piece plays a critical role in ensuring that your roof system functions properly. If any of these components are damaged or compromised, it can lead to water infiltration, mold growth, and other issues. Regular maintenance and inspections can help ensure that your roofing system remains in good condition and continues to protect your home or building for many years to come.

If you’d like a price quote or to learn more about how regular roof maintenance can protect your home, call 215.345.9159 or email [email protected].