Understanding Roofing Materials: A Quick Guide to ISO
- David Leli
- Mar 15
- 2 min read
You may think a shingle is a shingle and a gutter is a gutter when it comes to your roof, but the materials used for a roof affect the performance and durability of the home or building. Another important yet often overlooked roofing material is insulation.
That’s where ISO (Polyisocyanurate Insulation) comes in. ISO is an insulation material commonly used under roofing membranes, such as TPO (see previous blog for a quick guide to TPO). Due to its high R-value (a measure of thermal resistance), ISO helps maintain a steady internal temperature. By limiting the amount of heat transfer, ISO prevents extreme temperature fluctuations that can cause wear and tear on both the roof and the building itself.
Here’s a quick guide to help you understand how ISO can enhance your roofing system.
Benefits of ISO:
Improved Insulation: ISO is a rigid board insulation material that enhances energy efficiency and durability. It provides significant thermal insulation, which helps with energy conservation and reduces heating/cooling costs.
Moisture Resistance: Helps prevent water infiltration, reducing the risk of water damage and mold growth.
Longevity: Can help extend the lifespan of your roof. With better temperature regulation and moisture resistance, your roof will be less susceptible to damage from extreme weather, resulting in fewer repairs and replacements over the years.
Lightweight: Easier to handle and install compared to other insulation materials, yet still extremely durable.
Fire Resistance: Often has a fire-resistant coating, providing an added layer of protection.
When is ISO Used and How is it Installed?
In regions with extreme climates or fluctuating temperatures, ISO insulation is a beneficial option for many types of roofing systems. However, factors like roof slope, building structure, and budget should all be taken into account when selecting roofing materials.
ISO boards are typically installed beneath the roofing membrane to provide an additional layer of insulation, contributing to the overall durability and efficiency of your roof.
Depending on the roofing system, the ISO boards can be placed in a staggered pattern to improve the overall stability and performance. This helps prevent thermal bridging and ensures better coverage and energy efficiency.
Once the ISO boards are in place and secured, a roofing membrane, such as TPO, is installed on top.
At 3MG, we are experts in storm restoration and roofing repairs and installation. If you have questions about ISO, reach out today for a comprehensive overview to help you make the best decision for your structure.
Based in Central Florida and founded in 2020, 3MG Solutions, LLC is one of the fastest-growing residential roofer and commercial roofing companies in the country. At 3MG, our goal is to build trusted, long-term relationships with our community, customers, suppliers, and corporate partnerships. We believe this positions us as the best roofer and one of the dominant roofing companies in the country. Visit us at https://www.3mgsolarroofing.com/ OR call (407) 492-5256.
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