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What Is Metal Roof Insulation & How Can It Save You Money?
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What Is Metal Roof Insulation & How Can It Save You Money?

Posted on August 3, 2023

Estimated Reading Time : 6 Min.

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Metal roof insulation

Metal roofs are gaining popularity across the U.S. They offer great durability, protection, and are a great long-term investment. If you’re looking to replace or install a new roof, metal roofing emerges as the top choice. 

But even the best roofs cannot work at their full potential unless they are aided by other components such as roof insulation, flashing, and ventilation, among other things. 

In this blog post, we will focus on metal roof insulation. Usually hidden and not talked about, insulation is crucial when it comes to metal roofs. So let’s get started. 

What Is Metal Roof Insulation? 

Sure, a metal roof looks great from the outside, as it has a classic look that is available in various colors and textures. But to make sure that a metal roof protects your home well from the inside, insulation is required. 

If you are not aware, metal roof insulation is the layer of additional protection that your contractor will install below your metal roof. It is installed under your roof panels and decking (or sheathing) of the roof.  

Its primary purpose? To act as a barrier, preventing heat transfer and keeping your home comfortable all year round. Now, let’s explore the fantastic benefits it brings!

How Metal Roof Insulation Saves Money

Okay, let’s cut to the chase. You want to know precisely how metal roof insulation saves you money, right? We’ve got the answers! 

First, insulation ensures that your heating and cooling efforts don’t escape through the roof. This means you can dial down your thermostat during winter and give your AC a well-deserved break in the summer. Lower energy consumption equals lower bills and more money in your pocket!

But the money savings don’t end there! With metal roof insulation, you’re investing in long-term savings. Traditional roofs may wear out over time, but metal roofs paired with insulation can stand the test of time, reducing the need for costly roof replacements. Think of it as a durable shield guarding your home against expensive repairs!

Other Benefits Of Metal Roof Insulation

Properly insulated metal roof panels can help you save money, but this is not the only benefit. Let us look at some of the other advantages of installing metal roof insulation. 

Increased Lifespan:

Metal roofs are known for their durability and longevity, but they can still be susceptible to damage from thermal expansion and contraction. Insulation helps minimize the impact of temperature changes on a metal roof, reducing stress and strain on the materials. By mitigating these effects, metal roof insulation helps preserve the roof’s structural integrity and extends its overall lifespan.

Needless to say that proper metal roofing insulation can enhance your roofing system, enabling it to face the conditions better and keep the interior comfortable, regardless of the season. 

Environmental Impact:

Metal roof insulation not only benefits homeowners but also contributes to sustainable building practices. By reducing energy consumption, it helps decrease greenhouse gas emissions, mitigating environmental impact. Additionally, some insulation materials, like reflective insulation, are made from recycled materials, further promoting eco-friendly building solutions.

Soundproofing Benefits:

In urban settings or noisy environments, soundproofing becomes crucial. Metal roof insulation can also act as an effective sound barrier, reducing external noises from rain, traffic, or other sources. This added benefit enhances the overall indoor experience, creating a peaceful and tranquil environment.

Increased Property Value: 

Energy-efficient buildings are highly desirable in today’s market, and proper metal roof insulation plays a significant role in enhancing a property’s value. Potential buyers or tenants recognize the long-term benefits of an insulated metal roof, such as reduced energy costs and increased comfort. Buildings with energy-efficient features often command higher selling or rental prices, making metal roof insulation a valuable investment.

Also Read: 5 Metal Roof Styles That Will Give Your Home A Modern Makeover

Regulatory Compliance: 

Many local governments and building codes have stringent requirements for energy efficiency and sustainability. These regulations often include mandates for proper insulation in roofing systems. Installing metal roof insulation ensures compliance with these regulations. 

Choosing The Right Insulation

Choosing the right insulation for your metal roof is a crucial decision that directly impacts the building’s energy efficiency, comfort, and overall performance. 


This is the most crucial factor you need to take into account. The R-value measures the insulation’s thermal resistance. The higher the R-value, the better the insulation’s ability to resist heat transfer. 

Climate and Location:

Take into account the climate and geographical location of your building. Different regions experience varying temperature ranges, humidity levels, and weather conditions, which influence the insulation’s required thermal resistance and moisture resistance.

Long-Term Cost Analysis: 

Look beyond the initial installation cost and consider the long-term cost savings associated with the insulation’s energy efficiency. Investing in higher-quality insulation may yield greater savings over the building’s lifespan.

Types Of Metal Roof Insulation To Level Up Your Home In 2023 

Metal roof insulation comes in various forms, each with its unique characteristics and benefits. Let’s explore the most common types of insulation materials used for metal roofs, and their respective pros and cons.

Fiberglass Insulation

Fiberglass insulation

Fiberglass insulation is one of the oldest, most commonly used, and budget-friendly options for metal roofs. It consists of tiny glass fibers, which trap air and slow down heat transfer. Fiberglass insulation is relatively easy to install as it is available in pre-cut batts or panels. This insulation for metal roofs can also offer an R-value of R-3 to R-4, which is pretty reasonable considering its price.

However, over the years, these have slowly been replaced by other types of insulated panels due to the low R-value, as well as the fact that it can release a few compounds that may be harmful to your eyes and skin.  

Rigid Board Insulation

Rigid board insulation

Rigid board insulation is a type of metal roof insulation known for its excellent thermal resistance and durability. There are two main types of rigid board insulation commonly used for metal roofs: expanded polystyrene (EPS) and extruded polystyrene (XPS). EPS is lightweight and cost-effective, making it an appealing option for budget-conscious homeowners. On the other hand, XPS offers higher compressive strength and moisture resistance, making it suitable for areas prone to water exposure. This insulated panel also has a higher R-value.  

Both types provide exceptional energy efficiency and are easy to install. However, its rigidity can make fitting it around irregular shapes more challenging, and its higher initial cost may deter some homeowners.

Spray Foam Insulation

Spray foam insulation

Spray foam insulation is a highly versatile and efficient option for metal roof insulation. Over the years, many homeowners have started opting for this insulation method as it has the highest R-value of around R-6 or R-7. Upon application, it expands to fill all gaps, creating a seamless and airtight barrier. This ensures minimal heat transfer, making it an excellent choice for energy efficiency and maintaining stable indoor temperatures. 

However, it’s crucial to note that the installation process requires professional expertise to ensure a proper fit and seal. Additionally, during application, spray foam can release volatile organic compounds (VOCs), which may cause temporary odors and respiratory irritation.

Reflective Insulation

Reflective insulation

Reflective insulation works by reflecting radiant heat away from the building, helping to maintain comfortable indoor temperatures. It is particularly effective in warmer climates, where radiant heat plays a significant role. Some types of reflective insulation are made from recycled materials, making them environmentally friendly choices.

DIY vs. Professional Installation

While it may be tempting to roll up your sleeves and tackle this project yourself, DIY insulation installation isn’t for everyone. It requires specific skills, tools, and patience to ensure a proper job. Plus, it can be especially risky if you are not professionally trained or lack the proper safety equipment. 

So unless you are a roofer or a seasoned DIY enthusiast, we do not recommend installing the insulation yourself. You should avoid it for the following reasons:

  • Safety risks associated with working at heights
  • Time-consuming learning process and potential project delays
  • Costly mistakes leading to expensive repairs
  • Potential long-term performance issues
  • Inadequate coverage and improper sealing

If you’re unsure, or a bit wary of heights, it might be wise to call in the pros. A professional installation guarantees that your insulation is installed right the first time. 

Insulate Your Home With All Around Roofing, Siding & Gutters!

One of the most common errors that you will face if you decide to insulate a metal roof is the case of improper installation, leading to gaps that allow heat transfer. Inadequate sealing and using the wrong insulation material are also pitfalls that you need to consider. 

But to avoid all this, all you need to do is contact the team at All Around Roofing, Siding & Gutters. We are a premier roofing company providing service to Dayton and the surrounding areas of Ohio. Whether you want to install shingle or metal roof insulation, we can help. 

Contact us today at (937) 902-2839 to book a free consultation or learn more about roof insulation and our other roofing services. 

Metal roof insulation
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