OhioState Weather Alerts
There are currently no active weather alerts.

The Ultimate Roofing Guide: All You Need to Know About the 21 Different Parts of Your Roof

Table of Contents

663 Roofing & Exteriors: Simplifying Your Roof’s Anatomy for Home Comfort and Efficiency

A sturdy, well-maintained roof provides much more than shelter from the elements. It’s a vital part of your home that guarantees comfort, safety, and energy efficiency, strengthening your house’s structure while boosting its curb appeal. However, understanding your roof, its structure, and the 21 different parts that come together to form this protective barrier might seem like a daunting task. But don’t worry, at 663 Roofing & Exteriors, we believe in making home improvement concepts accessible to everyone.

The 21 Different Parts of a Roof

  1. Decking: The foundation layer of your roof, typically made of plywood or oriented strand board (OSB).
  2. Underlayment: A water-resistant barrier on the decking protects your home from water seepage.
  3. Attic: Influential for roof health through insulation and ventilation despite not being part of the roof itself.
roof vent
  1. Vents: Maintain balanced airflow in the attic, reducing moisture and regulating temperature.
  2. Rafters: Angled beams that support the roof’s weight from the peak to the walls.
  3. Ridge: The highest point where two slopes meet—often the location of a ridge vent for ventilation.
  4. Collar Beams: Positioned between two rafters, providing stability and preventing rafters from spreading apart.
roof battens
  1. Battens: Secure tiles or shingles in place over the underlayment with these thin strips of material.
  2. Ceiling Joists: Horizontal beams that connect walls, supporting the attic’s weight and binding the structure.
  3. Soffits: The visible underside of the roof’s overhang encloses the space and protects your home from the elements.
  4. Fascia: Vertical finishing edge connecting the ends of rafters or trusses, often where gutters are attached.
  5. Rake: The slanting outer edge of a gable roof connects the ridge to the eaves.
  6. Hip: The external angle formed by two adjacent slopes in a roof system.
roof eave
  1. Eaves: The roof’s overhang projects beyond the exterior wall, providing shade and protection.
  2. Valley: Where two sloping roof faces meet, featuring special flashing to direct water off the roof.
  3. Dormer: A structure that projects from a sloping roof, providing additional space and windows.
  1. Chimney: A vertical structure for venting hot flue gasses or smoke from a boiler, stove, or fireplace.
  2. Flashing: Material (usually metal) preventing water leakage through joints or valleys.
  3. Drip Edge: Directs water away from the fascia and into the gutters, installed along the roof’s edges.
  4. Gutters and Downspouts: Collect and channel rainwater away from your home to prevent damage.
  5. Covering: Your roof’s external layer, composed of shingles or other materials, protects your home from the elements.

How These Parts Work Together

Each component plays a specific role in maintaining the integrity of your roof and home. Their interaction ensures a roof that not only withstands weather influences but also contributes to your home’s energy efficiency and comfort.

Common Roofing Issues and Maintenance Tips

Here at 663 Roofing & Exteriors, an integral part of keeping a roof over your head is taking good care of that roof. Proactive and regular maintenance are vital to prolonging its life, offering you the peace of mind you deserve. So, we’ve simplified it into a manageable checklist:

  • Regular Check-ups: Visually inspect your roof regularly, especially after severe weather. This will help you notice any changes or potential issues early on.
  • Shingle Inspection: Look for cracked, rotting, or missing shingles. These can indicate underlying issues with the roof structure and are usually quite simple to fix when caught early.
  • Flashing Condition: Rusting or loose flashing sections can lead to water seeping into your home. Check for such issues regularly and confirm the sturdiness of the flashing.
  • Vent Clearance: Blocked vents may lead to inadequate attic ventilation, causing increased energy costs and potential mold growth. Make sure vents are free of dust and any other blockages.
  • Moss Treatment: Excessive moss on your roof can trap moisture and cause your shingles to lift. Brush off moss using a soft brush and apply a moss inhibitor if necessary.

This guide will help minimize potential damage and save on extensive repair costs. Still, if you’re facing roofing issues, remember our experts at 663 Exteriors are just a call away.


Understanding the different pieces that form your roof can seem intimidating. Yet, knowledge about the 21 parts we’ve discussed can be valuable when planning a roof renovation or addressing home repairs. At 663 Roofing & Exteriors, we’re not just in the business of building roofs but trust as well. Using our expertise and commitment to quality, we’ll help you build a roof that genuinely feels like home.

Share This Page:


Recent Posts:

Financing Available!

Ask us about our same-as-cash financing