6 Types of Roof Trusses & Their Benefits

Roofing contractor installing roof truss

When it comes to building or renovating your home, the roof is one of the most critical components. A well-built roof provides shelter, enhances curb appeal, and ensures the safety of your home. At the heart of every roof is its underlying support system—roof trusses. These structures not only provide structural integrity but also help save on time and costs during construction.

This blog will help homeowners understand:

  • What roof trusses are
  • Types of trusses available
  • Benefits of roof trusses
  • Key considerations for choosing the right truss

What Are Roof Trusses?

Roof trusses are pre-assembled frameworks of beams engineered with precision to provide structural support for your roof. These trusses consist of components such as top chords (the outer edges creating the truss’s shape), bottom chords (the base of the truss), and internal diagonal beams called webbing.

Through their innovative design, roof trusses evenly distribute the roof’s weight across your home’s walls. This even load distribution often removes the need for interior load-bearing walls, creating open and versatile interior spaces.

Whether you’re building a cozy home or a modern structure, roof trusses are an adaptable and cost-efficient solution.

A wooden roof truss being lifted by a crane

Types of Roof Trusses

With so many roofing materials and architectural styles on the market, homeowners have several roof truss options to choose from. Here’s a closer look at the major types of roof trusses and the unique benefits they offer.

1. King Post Truss

The king post truss is one of the simplest and oldest truss designs. Featuring a single vertical post (or “king post”) at the center, it effectively supports roof spans for modest-sized homes.

⭐️ Key Features:

  • Ideal for spans of up to 16 feet.
  • Cost-effective and minimalistic in design.
  • Suitable for straightforward, classic roof shapes.

This truss type is especially popular amongst homeowners who favor a rustic or traditional style. Its simplicity also contributes to cost savings during construction.

2. Girder Truss

If you’re planning a complex roof design or need extra support for areas with heavy load requirements (such as HVAC equipment or multiple slopes), a girder truss is an excellent option. Girder trusses are designed to handle additional weight effectively, offering both flexibility and strength.

⭐️ Key Features:

  • Used in conjunction with other trusses for added support.
  • Perfect for roofs with complex structures or high load demands.
  • Offers enhanced structural integrity for expansive roof systems.

Homes with intricate rooflines or significant spans often rely on girder trusses to maintain safety and durability.

3. Parallel Chord Trusses

Parallel chord trusses are a modern choice for homes with flat or low-slope roofs. These trusses have top and bottom chords running parallel to each other, joined by diagonal webbing.

⭐️ Key Features:

  • Perfect for flat or slightly pitched roofs.
  • Creates spacious interiors and is often used in vaulted ceilings.
  • Allows room for HVAC systems and insulation, making it energy-efficient.

These trusses are popular in sustainable building projects thanks to the ease with which they integrate with energy-saving designs.

4. Attic Trusses

Want to maximize storage or create additional living space? Attic trusses are your go-to solution. Unlike other truss types, attic trusses are designed with a larger interior space to make room for an attic or loft.

⭐️ Key Features:

  • Excellent for adding functional attic or storage space.
  • Supports both aesthetic designs and practical needs.
  • Ideal for homeowners aiming to increase usable square footage.

If you’re considering an upgrade to your storage options or adding a guest room, attic trusses provide a cost-effective solution.

5. Queen Post Truss

A close relative to the king post truss, the queen post truss has two vertical posts instead of one. This small design tweak allows it to handle wider spans.

⭐️ Key Features:

  • Effective for spans ranging from 16 to 30 feet.
  • Simple and elegant design compatible with many architectural styles.
  • Cost-effective while maintaining functionality.

The queen post truss is ideal for homeowners looking to blend aesthetic charm with robust performance.

6. Scissor Truss

If you’re dreaming of high, vaulted ceilings, the scissor truss delivers both style and function. Its unique design features diagonal bottom chords forming a scissor-like shape, creating a greater ceiling height.

⭐️ Key Features:

  • Perfect for open, airy interiors like great rooms or dining spaces.
  • Offers dramatic architectural impact while retaining structural integrity.
  • Works for steep-pitched, eye-catching roofs.

Scissor trusses are commonly used in homes that prioritize style without compromising on structural support.

roof construction of big wooden trusses closeup

Benefits of Roof Trusses

Why are roof trusses such a popular choice for modern construction? Because they provide clear advantages for homeowners, including:

  • Cost-Effectiveness: Pre-fabricated trusses cut down on material waste and reduce on-site labor costs.
  • Versatility: Roof trusses accommodate various roofing styles, whether flat, pitched, or vaulted.
  • Speed of Installation: Trusses are pre-assembled, which significantly shortens building timelines.
  • Structural Integrity: The combination of top chords, bottom chords, and webbing ensures a durable, long-lasting roof structure.

Key Considerations When Choosing Roof Trusses

When selecting the right roof trusses for your home, here are the factors you’ll need to keep in mind:

Wooden frame truss system

1. Roof Size and Pitch

The dimensions and slope of your roof directly impact the truss type you’ll need. For instance, low-pitch roofs benefit from parallel chord trusses, while steep-pitch homes often utilize scissor trusses for visual appeal and support.

2. Energy Efficiency

If reducing energy costs is a priority, opt for trusses that allow insulation and HVAC integration. Parallel chord trusses are especially efficient in this regard.

3. Load Requirements

Assess whether your roof will need to support additional loads, such as mechanical systems or solar panels. Girder trusses are specifically designed for such needs.

4. Local Building Codes

Every region has its own building regulations. At O’Donnell Roofing, we ensure that all trusses meet or exceed local requirements.

Why Choose O’Donnell Roofing?

At O’Donnell Roofing, we understand that your roof is more than just a protective cover—it’s a vital component of your home’s overall design and safety. With decades of experience, we specialize in creating custom roofing solutions tailored to each homeowner’s needs.

Here’s why we’re the preferred roofing partner for homeowners:

  • Unparalleled Expertise: Our team selects the ideal truss systems to match your roof size, pitch, and load requirements.
  • Premium Roofing Materials: We use only the industry’s best materials to ensure longevity and durability.
  • Commitment to Safety and Quality: Every truss we install complies with local building codes to guarantee your home’s safety.
  • Customer Satisfaction: From consultation to installation, your satisfaction is our top priority.

Roof trusses are the backbone of any sturdy and reliable roof. From the timeless appeal of king post trusses to the open versatility of attic trusses, there’s a solution for every home and style. Contact us today so we can help you discover the best solutions to suit your roofing needs. Together, we’ll create a roof that stands the test of time with strength, style, and functionality.

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