R-13 vs R-19 Insulation: What’s the Difference?

Images / phoenixinsulationpros.com

R13 vs R19 Insulation: What’s the Difference?

Comparing R-19 insulation and R-13 insulation is often done at home. But do you know the difference between these two types of insulation? If not, you are at the right place.

The difference between R-13 insulation and R-19 insulation is subtle and important for homeowners.

Undoubtedly, it is a must-know for those who want to take things up a notch in their homes. So, without further ado, let’s jump into the blog discussion on R-13 vs R-19 insulation

What is R-13 insulation?

  • R-13 insulation is a type of insulation that has an R-value of 13.
  • The higher the R-value, the more protection from heat it provides.
  • R-19 insulation is a type of insulation with an R-value of 19.
  • The higher the r-value, the better the insulation performs.
  • R-13 insulation is typically used in colder climates where r-19 insulation may not be necessary.
  • The r-value of r-13 insulation is $0.65 per hour while r-19 is $2.00 per hour.

The r-value of r-13 insulation is $0.65 per hour while r-19 is $2.00 per hour. If you’re looking to insulate your home or business, consider using r-13 insulation instead of r-19 insulation for its higher cost and better thermal protection.

What is R-19 insulation?

R-19 insulation is more energy-efficient than R-13 insulation. It’s made from a combination of fiberglass and steel, and it’s thicker and heavier than R-13 insulation. This insulation provides better protection from heat and cold, which makes it more energy efficient.

R-19 insulation costs more to install, but it pays off in the long run. That’s because it lasts longer and provides better resistance to heat and cold.

R-19 insulation offers better thermal performance than R-13 insulation does. This means it can better insulate a building against the elements and keep it warm in the winter and cool in the summer.

Given its improved performance and durability, you’re likely to see this type of insulation used in newer home construction projects.

R13 vs. R19 insulation – The Differences

R13 vs R19 insulation – The Differences
Images / familyhandyman.com

R-13 and R-19 insulation are both types of insulation that provide thermal protection for your home. However, R-13 insulation is less efficient and more expensive than R-19 insulation.

That’s because it doesn’t have the same level of thickness and can’t be used in as many scenarios as R-19 can.

R-13 insulation is designed to provide extra warmth during the winter months, while R-19 insulation is better for warmer climates.

The main difference between the two types of insulation is how they perform in extreme temperatures.

R-13 insulation can withstand temperatures up to 165 degrees Fahrenheit without damage, making it a good choice for attic insulation.

R-19 insulation, on the other hand, can withstand temperatures up to 550 degrees Fahrenheit without degrading and lasts for 5 to 7 years.

The key distinctions between R-13 and R-19 insulation are summarized below:

R-13 InsulationR-19 Insulation
Has an average thickness of 3⅝ inches.Has an average thickness of  6¼ inches.
Ideal for 2 by 4 walls.Ideal for 2 by 6 walls.
Limited application ideal for walls and floorsDiverse application scope, including attic entrances and window edges
Good thermal and humidity protection.Superior thermal and humidity protection
Moderate cost depending on the content materialHigher cost per square foot depending on the content material
Ideal for protection in warmer climates such as the Southern USBetter suited to cooler climates such as Northern US and Midwest.

The thickness of R-13 vs R-19

The density of insulator materials varies. Rock wool, wood, fiberglass, cellulose, and plastic fibers are some of the most common materials used for insulation.

Thicker R-19 insulation compared to R-13 value insulation. R-19 fiberglass batt insulation is often 6.25 inches thick, whereas R-13 fiberglass batt insulation is 3.5 inches thick. Closed-cell insulation has a thickness of 3.1 inches and R-19 spray foam open cell insulation has a thickness of 5.2 inches.

When the material underneath it is thicker, you can use R-13 instead of R-19 insulation. Perlite may be replaced by fiberglass in the R-13 series, and vice versa.

The quantity of material utilized per square foot of insulation may be decreased by using denser materials with greater thermal retention capabilities.

Images / phoenixinsulationpros.com

Thermal protection

The thermal protection abilities of different insulation materials are variable.

Because of the variations in thickness, R-19 insulation offers greater thermal protection than R-13. In comparison to grass, wool, and cork, materials like fiberglass and mineral wool offer more consistent protection against indoor temperature fluctuations.

During the summer, southern US states require better thermal protection, whereas during the winter, northern areas need more insulation.

Scope of application

R-13 insulation is a Type III insulation and is commonly used in residential applications. R-19 insulation is a Type IV insulation and is often used in commercial applications for improved thermal performance.

R-19 insulation has a longer lifespan and provides better thermal performance in cold climates than R-13 insulation.

R-19 insulation costs more than R-13 insulation and has a shorter lifespan, making it cost-effective only when used in commercial applications.

R-19 insulation ensures the best thermal performance in all climate conditions, making it the ideal choice for any type of building project.

Humidity prevention

R-13 and R-19 insulation are two of the most common types of insulation used in homes and buildings. Both insulation types are effective at preventing moisture from entering the structure, but there are a few key differences that must be considered before making a decision.

R-13 insulation is less expensive than R-19, but it does not perform as well in high humidity environments. In addition, R-19 is more expensive than R-13, but it performs better in high humidity environments.

When making an investment to improve the energy efficiency of your home or building, it is important to conduct thorough research and evaluate different insulation options to ensure you choose the best solution for your needs.

Cost/Value over Time

R-13 insulation is a type of insulation that is typically used in residential applications. It is more economical than R-19 insulation, which offers better energy efficiency and lower monthly utility bills over time.

However, R-19 insulation offers some benefits over R-13 insulation, such as resistance to moisture and pests.

So, it all depends on what type of application you are looking to insulate. Over time, R-19 insulation will likely offer a better value since it will last longer and require less maintenance than R-13 insulation.

This is because R-19 insulation has a higher R-value and can withstand higher temperatures without significantly reducing its thermal efficiency.

Pros and cons of R-13

  • R-13 insulation is less expensive than the more energy-efficient R-19 insulation.
  • In terms of cost, you can save a lot of money using R-13 insulation instead of R-19 insulation.
  • But when it comes to energy efficiency, the cost difference is not that much.
  • A home with R-13 insulation will consume more energy (than one with R-19 insulation) if it’s well insulated.

That’s because R-13 insulation is cheaper and provides poor barrier properties. It doesn’t block out heat or cold effectively, making it more economical for use in thinner wall construction.

However, there are several health concerns with this type of insulation. It’s made from mineral fiber and can be inhaled easily. If this type of insulation becomes airborne, it might lead to respiratory issues.

Another concern with R-13 insulation is fire resistance. It’s not as durable as its counterpart, which makes it less resistant to fires.

As far as longevity is concerned, around 50 years or so, depending on the quality of the material used in that particular home and the thickness of the insulation used, R-19 is much superior than R-13 insulation.

Pros and cons of R-19

R-13 insulation is a higher quality insulation than R-19 insulation. While both insulation types perform the same basic duty of insulating a building against the cold, R-13 insulation is more costly and provides better thermal performance than its counterpart.

As the name suggests, it has a rating of 13 inches of thickness and uses mineral fiber as its insulation material. This type of insulation provides excellent resistance to moisture, fire, and air.

R-19 insulation is more commonly used for its cost-effectiveness and easier handling properties. It is available in different thicknesses and can easily be cut to fit your project’s specifications.

In terms of lifespan, R-19 insulation lasts longer than R-13 insulation. Besides, you can also choose eco-friendly R-19 insulation that is made from recycled e-glass or organic substances like wheat straw or coconut husk fibers.

Frequently Asked Questions

Is a higher R-Value better for insulation?

When choosing insulation, it is important to consider the climate where your home will be located. In cold climates, a higher R-value insulation like R-19 is twice as effective as a R-13 insulation.

This means that you will save energy in the long run by using this type of insulation. Additionally, in cold climates, using a thicker insulation will also help keep your home warmer in the winter.

Likewise, in warm climates a lower R-value insulation like R-13 is better as it results in a lower annual energy cost.

Additionally, using a low-R-value insulation can cause moisture and moisture vapor intrusion (MVIP), which can lead to damage to your walls, ceilings and other spaces inside of your home.

Is R-13 better than R-19 insulation?

It can often be a matter of cost vs. comfort when deciding whether or not to upgrade your insulation.

When it comes to insulation, R-13 is more affordable than R-19 insulation. However, while R-13 insulation may be cheaper, it is less effective at blocking heat and cold than R-19 insulation.

This means that in some cases, the energy savings you would receive from upgrading to R-19 insulation may not be worth the extra money you would spend.

If you are looking to save money on your insulation purchase, then R-13 may be a better option for you.

What are the benefits of using R-13 insulation?

There are three main benefits of using R-13 insulation: better energy performance, resistance to moisture and pests, and a higher cost of installation.

R-13 insulation is more expensive than R-19 insulation, but it offers better energy performance. This means that it will save you money in the long run by reducing your energy bill.

Additionally, R-13 insulation is more resistant to moisture and pests, making it a better option if you live in a humid or pest-prone environment.

Last but not least, R-19 insulation does not provide the same level of thermal performance as R-13 insulation. This means that if you’re looking for an insulation that provides superior energy efficiency, then you should go with R-13 instead.

What are the benefits of using R-19 insulation?

There are many benefits of using R-19 insulation in your home. First and foremost, R-19 insulation is more protective than R-13 insulation.

R-19 insulation has a higher thermal resistance which means that it dissipates energy slower from the heat inside your home. This results in a cooler environment, which is ideal for people with sensitive skin or those who live in hot climates.

In addition, R-19 insulation lasts longer than R-13 insulation. This means that you will not have to replace it as often, which can save you money in the long run.

Finally, R-19 insulation costs more than R-13 insulation. However, this extra cost may be worth it if you want to get the most protection for your home against heat and cold.


Besides R-value, there are various other factors to consider while buying insulation. The thickness of the insulation, its material type (such as fiberglass and cellulose), and the type of installation (for instance, spray foam or batt insulation) are some of the factors that affect insulation performance.

In addition to these factors, it is also essential to understand the purpose for which you are using the insulation and how it will benefit your home. This will help you choose an insulation type that is right for your home and space. If you liked our blog on R-value, do share it with your friends on social media!

Leave a Reply

Your email address will not be published. Required fields are marked *

You May Also Like