When it comes to replacing or repairing your roof, the technical language used by contractors can sound like a foreign language. As a homeowner, understanding basic roofing terms can help you make informed decisions, avoid miscommunication, and feel confident during the roofing process. Below is a guide, that we at Marshalls Contracting would like to share today, to some of the most common roofing terms every homeowner should know.
Roofing Terms & Definitions
1) Shingles. Shingles are the outermost layer of the roof, and they play a key role in protecting your home from the elements. They come in various materials, including asphalt, wood, metal, and slate. Asphalt shingles are the most popular in the U.S. due to their affordability and durability.
2) Flashing. Flashing is a thin metal material installed at joints, valleys, and around objects that protrude from the roof, such as chimneys or skylights. Its purpose is to redirect water away from these areas to prevent leaks.
3) Decking (or Sheathing). Decking is the foundation layer of the roof, usually made of plywood or OSB (oriented strand board). It is attached to the rafters and supports all the other layers of the roof. If your roof has sustained severe water damage, your contractor may recommend replacing the decking during a roof replacement.
4) Underlayment. Underlayment is a water-resistant or waterproof barrier installed between the decking and the shingles. It acts as a second line of defense against water intrusion. Modern roofs often use synthetic underlayment for better performance and longevity.
5) Drip Edge. A drip edge is a piece of metal flashing installed along the edges of the roof. It directs water away from the fascia and into the gutters, helping to prevent water damage along the roofline and eaves.
6) Fascia. The fascia is the board that runs along the edge of the roof, directly behind the gutters. It helps support the gutter system and provides a finished look to the edge of the roof.
7) Soffit. The soffit is the underside of the roof overhang. It provides ventilation to the attic and helps prevent moisture buildup that can lead to mold growth and wood rot.
8) Ventilation. Roof ventilation refers to the system of vents (such as ridge vents, box vents, or soffit vents) that allow air to circulate in the attic. Proper ventilation helps regulate temperature, prevent ice dams in winter, and extend the lifespan of the roofing system.
9) Valley. A valley is the internal angle formed where two roof slopes meet. Because valleys are prone to collecting water, they must be properly flashed and sealed to prevent leaks.
10) Ridge. The ridge is the highest point of the roof where two slopes meet. A ridge cap, which is a special type of shingle, is often installed along this line for added protection and a clean finish.
Roof Installation, Replacement, Repair & More in Columbia, Jessup, Elkridge, Ellicott City, Clarksville, Fulton, Laurel MD and Howard, Carroll, Frederick, Baltimore, Anne Arundel and Montgomery Counties in Maryland
Having a basic understanding of these roofing terms can go a long way when discussing your project with a contractor. Whether you’re replacing your roof or just doing some research, this knowledge will help you make more informed decisions, and ensure you’re not left in the dark when it’s time to sign a contract or schedule work. When you need roofing repairs or replacement services, contact Marshalls Contracting when you are in need of roofing services!
