Types of Commercial Roof Systems

The roof of a commercial building is an essential component as it stands as the first line of defense against harsh weather conditions. It also acts as an energy-efficient barrier by maintaining proper insulation. In addition, a well-designed roofing system can improve the building’s overall appearance, making it an attractive and visually striking landmark in its vicinity.

Building owners and facility managers must recognize the characteristics and benefits of different roof options to make an informed choice. Let’s explore the four most common types of commercial roofing systems in greater detail.

Granulated Cap Sheet Roofing System

The granulated cap sheet roofing system is widely adopted in the commercial building industry, particularly for low-sloped structures. It comprises a modified bitumen or built-up roofing material layered with a cap sheet. The cap sheet is also often made up of asphalt reinforced with fiberglass or polyester matting before coating it with granules.

A granulated cap sheet is highly advantageous due to its exceptional waterproofing abilities. It forms an airtight seal, effectively preventing moisture from infiltrating the underlying layers of the roofing material. This is particularly crucial for low-slope roofs, as their flat or almost flat surface makes them more prone to water damage.

Here are additional advantages of the granulated cap sheet roofing system:

• Lower cost compared to other systems
• Enhanced aesthetics due to the color of the granules
• Availability in various weights
• Minimal noise when installed

Metal Roofing System

A metal roof system is an essential component of the building’s roofing envelope, acting as a physical separator between the interior and exterior. It is designed to offer excellent resistance against air, water, heat, and sound, making it a suitable choice for regions susceptible to extreme weather conditions. Not only does it provide functional benefits, but it also contributes to the building’s structural support.

Metals are renowned for their durability and can endure long periods with minimal upkeep. Moreover, they are highly versatile and can be applied to various building types, from modern commercial structures to historical edifices and everything in between.

The following are other benefits of using metal roofs:

• Minimal maintenance
• Low cost in the long term
• Eco-friendly option
• Long warranties

Foam Roofing System

A foam roofing system is widely used for commercial buildings with flat roofs. It utilizes liquefied spray polyurethane foam (SPF) onto the surface, which creates a seamless and weather-resistant layer when solidified. The foam also conforms to the roof’s shape, eliminating the need for joints and seams. This is especially beneficial for structures with complex roofing designs.

Two types of spray foam are available: open-cell and closed-cell. Open-cell foam is a lightweight, less dense material that insulates interior spaces. It has a lower R-value, which measures thermal resistance, but is more affordable than closed-cell foam. In contrast, closed-cell foam is denser and pricier. It offers a higher R-value, making it ideal for insulating roofs and exterior walls. It also provides better resistance against moisture and air infiltration.

The advantages of foam roofs are as follows:

• Exceptional energy efficiency and insulation
• Good waterproofing capabilities
• Easy installation and maintenance
• Longer lifespan
• High strength-to-weight ratio

Single-Ply Roofing System

Single-ply roofing is a flexible sheet of plastic-derived material used to protect and cover flat or low-sloped buildings. It is often used with insulation to increase energy efficiency and reduce noise.

There are three main types of single-ply roofs: thermoplastic polyolefin (TPO), polyvinyl chloride (PVC), and ethylene propylene diene monomer (EPDM).

TPO is a newer type of roofing material that is becoming increasingly popular due to its energy efficiency and simple installation process. On the other hand, PVC is widely recognized for its chemical resistance and durability. Lastly, EPDM is a rubber-based material popular in commercial buildings because of its resistance to weathering.

The following are the primary benefits of singly-ply roofs:

• Wide variety of available grades
• Easy installation
• Cost-effective
• Excellent solution against acid rain and severe weather changes
• Lightweight
• Good reflective properties

Commercial Roof Systems at Specguard

Are you looking for top-of-the-line roof coatings and materials for your commercial building? At Specguard, we’ve got you covered! Our selection includes various types of commercial roofing systems and pricing options tailored to your needs. We also take pride in offering cost-effective solutions by selecting the most suitable products for each unique roof type.

Let us help you save money by providing a customized system for your building’s age, condition, and goals. Contact Specguard to learn more about our roofing solutions!