Have you completed building your home’s foundation and walls, but the roof is left behind? The selection of the right structure of a roof is confusing and overwhelming for many homeowners, because it can enhance or ruin the curb appeal.
What type of residential roof structure will suit your home design? Further, what are the features of these different types of roof structures that make them stand out?
In this blog, we will discuss everything from house roof structures to their advantages and drawbacks. Moreover, we will also guide you about the best roofing structure according to the area of your home.
A Residential Roof Can Be Categorized Into Three Different Basic Roof Structures:

Residential roof structures are divided into three basic categories. Each roof type differs from others in their installation method and the area they cover.
1. Single Roof
In this type of residential roof structure, experts install only one layer of roof cover over your home.
First, professionals identify the core point for a ridge—the highest horizontal line of the roof. The ridge not only provides support but also serves as a marker for rafter installation.
Then, experts lay the rafters to provide structural support and a slope. Moreover, you can select the type of rafter material according to your budget and requirements. It runs from the central point of the ridge to the wall of your home. There’s no need to install purlins or hangers for support in this type of roofing. Thus, these structural roofs are perfect for small homes with compact ground floors.
Features of a Single Roof:
- Simple Design: Single roofs only require rafters and a ridge for installation. There’s no need to add complex hangers or layers of prulin for support.
- Cost-Effective: Single roofs save you from purchasing expensive trusses and hangers.
- Easier to Maintain: Because of the simple design, these roofs are easier to clean and inspect. If any leak or damage occurs, you can easily identify it before it gets worse.
- Limitations: These roofs come with a simple design and a less robust support system. So, if your home experiences any storm or heavy rain in the future, there’s a chance of roof damage. Moreover, this structure of a roof doesn’t allow proper ventilation and airflow, which can be suffocating.
2. Double Roofs
In double roofs, there are two layers of roof cover installed over the top of your residence. Then, Purlins help secure this roof structure. Purlins not only provide the structural support but also withstand the heavy weight of storms.
Moreover, the professionals make sure to maintain a small gap between these two layers for proper ventilation. These double roofs are somewhat more expensive than single roofs, but less than the trussers.
Features of a Double Roof:
- Better Ventilation: A double roof with a gap between covering layers offers better ventilation and airflow. So, this type of roof structure is best for people residing in hot areas. It also reduces the chances of mold and mildew growth from moisture.
- Improved Insulation: A double roof acts as an insulating layer and protects you from the heat in summer and the cold in winter.
- Increased Space: When you install these double roofs in your home, you get an extra space for installing solar panels or other systems.
- Drawbacks: Although double roofs offer many advantages, they still have some drawbacks. First, they are expensive to install due to their double layer and additional installation costs. Further, you also need to hire professionals for regular inspections.
3. Trussed Roofs
Trussed roofs cover the large homes with complex designs. These roofs contain hangers, struts, and binders for supporting heavy roofs. A wooden or steel-shaped triangle structure, known as a truss, is used to support the rafter and ridge of these roofs.
Trussed roofs cover the homes with a large surface area. It reduces the chances of mildew growth and cracks on roof surfaces. Moreover, trussed roofs are expensive to install as compared to other roof structures.
Features of a Trussed Roof:
- Strong and Stable: The structure of a roof is designed to withstand harsh weather conditions. The hangers, struts, and binders provide stability and strength to these roofs.
- Wide Spans: There is no need to install support columns under this roof to support the roof weight. The double-roof structure eliminates the need for these walls with the help of large steel or wooden triangles installed above the ceiling joists.
- Pre-Engineered Design: Trussed roofs are precisely designed to match your roof needs. The triangle and hangers come pre-attached to the rafter. So, it reduces your hassle of joining them together.
- Customization: If your home is larger than the local homes, there’s no need to worry. You can also customize the trussed roof to fit larger homes.
- Durability: Although trussed roofs are expensive to install, they are durable and stronger than single ones. So, invest once to avoid any future expenses.
- Cost Considerations: It’s important to understand the cost of trussed roofs before installation. You can get an estimate from local home builders. The common factors that define the cost are material, manufacturing, and installation.
Your Roof Deserves Attention!
Whether you choose a single or a trussed roof, it’s important to give it proper attention. Lack of regular inspection likely damages your roof. The structure of a roof not only provides stability but also proper ventilation and airflow. So, select the right type of roof structure for durable results.
At Rick’s Main Roofing, we offer single, double, and trussed residential roofing services throughout Connecticut. We use high-quality material from trusted manufacturers, GAF and ABR, to provide you with the best outcomes. Whether you are planning for roof replacement or repair, contact Rick’s Main Roofing. Our team of experts is always ready to serve you!
Faqs
What is the basic structure of a roof?
A basic roofing structure includes the framework, roofing materials, and supporting elements.
What is a structure on a roof called?
The structure that supports the roof is known as a rafter, which runs from the ridge to the wall plate.
What is the most common roof structure?
Many homeowners prefer to install a Gable roof for enhanced curb appeal. In this roofing method, two rafters slide run opposite each other along the ridge, creating a triangular shape.