Your choice of commercial roof insulation can significantly impact a building's energy consumption and longevity.
To show you what we mean, we’re taking a look at the various types of commercial roof insulation and discuss the different benefits and applications of each time.
By the end of the article, you should know why Rmax has the best roof insulation for commercial buildings.
5 Types of Commercial Building Roof Insulation
Here are the different types of insulation that you should consider for your commercial building:
1. Polyisocyanurate (Polyiso) Insulation
Polyiso is the leading choice for commercial roofing insulation—particularly in low-slope applications. It’s a closed-cell foam insulation that offers a high R-value per inch.
Polyiso is manufactured using blowing agents that meet environmental standards and ensures minimal environmental impact. The material is known for its fire resistance and compatibility with various adhesives, which makes it versatile for different roofing systems.
2. Expanded Polystyrene (EPS) Insulation
EPS is a cost-effective insulation option known for its lightweight and ease of installation.
Although its R-value is lower compared to Polyiso, it remains a popular choice because of its affordability. This is typically why EPS is ideal for large-scale commercial projects that have budget constraints.
3. Extruded Polystyrene (XPS) Insulation
XPS is another foam-based insulation, popularized for its high-compressive strength and moisture resistance.
It is commonly used in "green roofs" or buildings in wetter climates. It’s also worth mentioning that XPS insulation provides a consistent R-value and is used in commercial building applications that require robust moisture protection.
However, when compared to Polyiso, XPS offers less thermal efficiency.
4. Spray Foam Insulation
Spray foam insulation—available in both open-cell and closed-cell form—provides a seamless and effective barrier against air and moisture.
Closed-cell spray foam, in particular, is favored in commercial buildings because it has a high R-value. Not to mention, because spray foam expands, it works effectively in commercial buildings with irregularly shaped roofs or areas that require a continuous insulation layer.
5. Mineral Wool Insulation
Mineral wool is made from natural or synthetic minerals and has excellent fire resistance and soundproofing properties.
It is typically used in industrial and high-rise buildings where meeting fire safety standards is important. While mineral wool offers good thermal resistance, it is heavier and less efficient in terms of R-value compared to foam-based insulations like Polyiso.
Considerations for Choosing Commercial Building Roof Insulation
Selecting the right roofing insulation means you need to consider the following factors:
Climate and Weather Conditions
The local climate plays a significant role in determining the appropriate insulation material. Buildings in colder climates may require insulation with higher R-values to minimize heat loss, while those in wetter climates need materials with excellent moisture resistance.
Building Use and Occupancy
The building's use and occupancy can influence insulation needs. For example, office buildings may prioritize thermal efficiency to reduce energy costs, while industrial buildings might focus on fire resistance and durability.
Regulatory and Building Codes
Adherence to local and international building codes is another factor to remember. Materials must comply with standards such as the International Energy Conservation Code (IECC) and the International Building Code (IBC) to ensure safety and efficiency.
Rmax’s Polyiso products are designed to meet these stringent requirements and offer a compliant and high-performing solution for commercial buildings.
Rmax and Sika Sarnafil Roofing Insulation Solutions
Rmax offers an extensive range of polyiso-based insulation products designed to meet the specific needs of commercial roofing projects, and our products are known for their high thermal efficiency, environmental sustainability, and compliance with industry standards.
SarnaTherm CG
SarnaTherm CG is a high-performance insulation product designed to improve energy efficiency in commercial roofing systems.
With its closed-cell structure, it offers excellent thermal resistance and moisture protection. They’re also compatible with Sika Sarnafil membranes to provide additional durability.
SarnaTherm ISO Tapered
SarnaTherm ISO Tapered is a cutting-edge insulation solution for sloped roofing that enhances drainage by directing water away from the roof surface, reducing the risk of leaks. Its closed-cell structure provides excellent thermal resistance and compatibility with Sika Sarnafil roofing membranes.
Because it’s lightweight, it’s easier to install and makes an excellent choice for almost all commercial buildings.
SarnaTherm CG Tapered
SarnaTherm CG Tapered is a high-performance tapered insulation designed for commercial roofing. Its closed-cell structure enhances energy efficiency, manages moisture by directing water flow, and offers superior thermal resistance.
It is compatible with various membranes and supports best practices in sustainability. Typically it’s Ideal for projects that need optimal roofing performance and longevity.
SarnaTherm Roof Board R
SarnaTherm Roof Board R is a high-performance insulation solution for commercial roofing, featuring a rigid polyisocyanurate foam core that offers excellent thermal efficiency and R-values.
Compatible with Sika Sarnafil roofing membranes, it ensures easy installation and durability. Its lightweight design facilitates handling, and its energy-efficient properties support sustainable construction, making it ideal for projects aiming to meet energy codes and environmental standards.
Rmax products, combined with these offerings from Sika Sarnafil, provide a comprehensive solution for commercial roofing insulation.
Get The Best Commercial Building Insulation From Rmax
Rmax offers a comprehensive range of Polyiso-based insulation products designed to meet the diverse needs of commercial roofing projects.
Our solutions prioritize energy efficiency, sustainability, and long-term performance.
Contact us today for more information.