6 Best Types of Roofing Insulation to Install in Your Home

Posted on August 17, 2023

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6 Best Types of Roofing Insulation to Install in Your Home

Imagine a chilly winter night, but instead of enjoying the coziness of your warm home, you are piling on the blankets and constantly turning up the heat. On the flip side, during a scorching summer day, you rely on your air conditioner to keep you cool, only to discover that the indoor temperature is steadily rising. 

Your insulation may be at fault. It plays a crucial role in determining the comfort and energy efficiency of your home. When you decide to install or replace your roofing system, you need to take a look at roof insulation too. But most homeowners either forget about this crucial part or are not aware of it to begin with. 

Today we will take you through the six best types of roofing insulation to consider for your home. So, let’s dive in and explore the options that will make your home an energy-efficient haven!

Terms To Understand Before You Choose The Right Type Of Insulation

Before diving into the world of insulation, familiarizing yourself with essential terms can help you make informed decisions and better understand the ins and outs of the process. Here are some key terms to know:

Roof Insulation:

Roof insulation is a type of material, typically in the form of rolls or foam, that contractors install beneath your roofing system, placing it between the rafters and joists. The purpose of this is to create a thermal barrier that prevents heat from escaping in the winter and entering in the summer. 

You can also install the roofing insulation on the attic floor, or on the underside of the roof deck, depending on the type of insulation and the design of your building.


The R-value is a measure of the insulation material’s thermal resistance. It is the most important factor you need to consider when you decide on the right type of insulation for your home.  A higher R-value indicates better resistance to heat transfer, meaning your insulation will be more effective at preventing heat from transferring in or out of your home.

Vapor Barrier:

A vapor barrier is a material that prevents the passage of water vapor through the walls and ceilings. It helps protect the insulation from moisture and potential damage.

Also Read: 10 Best Roofing Companies In Broken Arrow For 2023

Let us now move on to the six types of insulation you should consider for your home. 

#1 Fiberglass Batt Insulation: Your All-Weather Ally

Fiberglass Batt Insulation

When it comes to versatility and cost-effectiveness, fiberglass batt insulation reigns supreme. These insulation blankets, made of spun glass fibers, are available in various widths and thicknesses. The snug fit between roof rafters ensures minimal heat transfer. Installing fiberglass roof insulation is also quite easy, and a contractor can typically install it within a day. This material is also suitable for all climates, keeping you warm during the chilly Claremore winters, and cooler in the summer.  


  • Fiberglass batt insulation is highly versatile and is suitable for various spaces and applications in your home
  • This type of insulation is budget-friendly, so it can be a good option if you are on a tight budget
  • Installing fiberglass batt insulation is a breeze, making it ideal for both DIY projects and professional installations. However, opting for a professional installation is always recommended 


  • It has a low R-value which can take a toll on energy efficiency
  • Improper installation can lead to gaps and air leaks, reducing the insulation’s effectiveness
  • Fiberglass insulation can absorb moisture, which might lead to mold growth if not properly addressed

#2 Spray Foam Insulation

Spray Foam Insulation

Fiberglass insulation still finds its way into many homes but, as we have seen, has its limitations. Over the years, new materials have been seeing a rise in popularity, such as spray foam insulation. 

If you’re on the hunt for an insulation material that provides a seamless, airtight seal, look no further than spray foam roof insulation. This cutting-edge solution expands upon application, effectively sealing all gaps and crevices. Since it has a foam substance, it also helps prevent air leaks.


  • Spray foam insulation creates a seamless and airtight barrier, ensuring maximum efficiency in preventing air leaks and drafts
  • The spray foam has a high R-value
  • The airtight seal significantly improves energy efficiency, leading to reduced utility bills
  • Spray foam’s impermeable nature helps keep out moisture, reducing the risk of mold growth and potential structural damage


  • With great features comes an extra cost. The initial cost of spray foam insulation can be higher than other insulation types, which may require a larger upfront investment
  • Due to the complexity of installation, spray foam insulation is best installed by professionals, adding to the overall cost

#3 Cellulose Insulation

 Cellulose Insulation

For the environmentally conscious homeowners out there, cellulose insulation is the go-to option. Made from recycled paper and treated with fire-retardant additives, it’s both sustainable and safe. 

Its excellent thermal performance and ability to conform to irregular spaces make it a popular choice for attics with unconventional shapes. Plus, its natural ability to resist pests means you won’t have to worry about creepy crawlers creating a home in your insulation.

Cellulose roof insulation is usually blown into the area between the rafters mechanically. This type of roof insulation not only has a good R-value but also can help a great deal with soundproofing as well. 


  • Blown-in insulation is easy to install and can cover hard-to-reach areas with ease, unlike batt insulation
  • This type of insulation can be affordable while also providing mass coverage
  • It is considered an eco-friendly insulation as it uses recycled materials and does not emit harmful substances


  • The loose fill insulation can retain moisture if not installed properly

#4 Radiant Barrier Insulation

Radiant Barrier Insulation

In regions with hot summers, radiant barrier insulation offers a fantastic solution. This type of insulation is usually installed on top of the roof deck, reflecting heat away from your living space. By doing so, it prevents your home from turning into an oven and lessens the workload on your air conditioning system. While it’s not designed for cold climates, in hot areas, it can significantly improve your home’s comfort levels and reduce cooling costs.


  • Radiant barrier insulation excels at reflecting radiant heat away from your living space, providing relief from hot weather
  • By preventing excess heat from entering your home, radiant barriers lessen the strain on your air conditioning system, leading to lower cooling costs


  • Radiant barrier insulation is most effective in regions with hot summers, making it less suitable for colder climates where heat retention is desired
  • While radiant barriers excel at reflecting radiant heat, they do not provide as much benefit in preventing conductive or convective heat transfer

#5 Rigid Foam Insulation

Rigid Foam Insulation

If durability and moisture resistance are your top priorities, rigid foam insulation should be on your radar. This type of insulation comes in various materials, such as expanded polystyrene (EPS), extruded polystyrene (XPS), and polyisocyanurate (polyiso). Its rigid nature makes it ideal for providing added structural integrity. Moreover, it’s moisture-resistant, making it a reliable choice for damp or humid climates.


  • Rigid foam insulation is known for its exceptional durability, making it a long-lasting solution for insulating your home
  • The stiff nature of this insulation type provides additional structural support when used 
  • Rigid foam insulation is highly resistant to moisture, making it an excellent choice for areas with high humidity or damp conditions


  • Compared to some other roofing insulation materials, rigid foam insulation can have a higher upfront cost, which may be a consideration for budget-conscious homeowners
  • Proper installation of rigid foam insulation often requires professional expertise, adding to the overall cost
  • Some types of rigid foam insulation, like expanded polystyrene (EPS), are derived from non-renewable resources and may have environmental implications

#6 Structural Insulated Roof Panels 

Structural roof panels, also known as insulated roof panels or sandwich panels, are a type of roofing system that incorporates insulation material between two outer layers of roofing material. These panels consist of a rigid core material, often made of expanded polystyrene (EPS), polyurethane (PUR), or polyisocyanurate (PIR), sandwiched between two metal sheets or other roofing materials. The insulation, structural support, and weather protection are integrated into one complete roofing system, reducing the need for separate layers and a labor-intensive installation.


  • The combination of an insulative core and the outer layers enhances the overall structural integrity of the roof, providing strength and stability to the building.
  • Structured roof panels are versatile and can be used for various applications, including industrial, commercial, and residential buildings.


  • Proper installation and sealing are crucial to prevent any potential water infiltration within the core insulation, as moisture can compromise its effectiveness and lead to structural issues. 
  • The manufacturing of structured roof panels may have environmental implications, particularly concerning the use of certain insulation materials. 

Best Roof Insulation Services In Owasso

We hope that you’re now well-versed in the six best types of roofing insulation that will maximize the comfort and energy efficiency of your home. 

Whether you opt for the versatility of fiberglass batt insulation, the airtight seal of spray foam insulation, or the eco-friendliness of cellulose insulation, each option offers unique benefits.

No matter what material you choose, our team at Capital Roofing can come to your aid. We install all types of roof insulation. Contact us today at (918) 260-4075 to book a free roof inspection, and get started with your roofing project today. 

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