R13 Vs R15: When to Use Which Insulation?

R13 Vs R15 – We’ve provided a detailed guide about both insulations. After reading this article, you’ll be able to determine which one to go for.

R13 InstallationR15 Installation
ProductsJohns Manville InsulationR13 Kraft RollR15 Insulation for2x4 Walls
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What is the R-Value of an Insulation?

The R-value for a product is the effectiveness of a product in resisting heat flow. The higher the value of the R is taller, the more effective it is in resisting heat. However, virtually every insulation product has an R-value. Additionally, the recommended R-value can be up to R60.

How to Choose the Perfect R-Value for Insulation at Your Home?

If you believe you could go with an R-value, but you’re not, then you’re mistaken. Also, always choosing greater R values might not be a good idea. The R-value of the insulation your home needs is dependent on many variables. The most important factors include:

Your Location

The climate of your area determines your R values. But, if you live in a cold region and are in a cold environment, you’ll require high-R-value insulation. In contrast, If you reside near an area where temperatures are high, you’ll require insulation with a lower value.

Structure of Your Home

Your home’s design comprises the type of ceiling, the level of the structure, and the availability of basement space, whether it’s constructed on slabs or not. Most of these variables will affect the R-value.

Your Budget

Typically, the price of insulation with higher R-values is higher than insulation with a lower R-value. Also, it is dependent on the budget you have set. The difference between R13 and R15 it’s not a huge cost variation.

How You Heat/Cool Your Home

Sensi Smart Home Temperature Control

Different people employ different methods to regulate the temperature of their homes. Therefore, the choice of what you use to control the temperature, whether you have a heater or an air conditioner, or a fan, can affect the decision you make to buy R-value.

Where are You Insulating

If you’re using insulation on your roof, you’ll require a greater R-value in comparison to what you’ll require on floors. But if you’re installing insulation on walls, the required R-value is between the two previous.

These are just a few of the most important factors to consider when choosing the R-value for your insulation.

Related article: Faced Vs Unfaced Insulation: Complete Comparison

The similarities in R13 and R15

Although R13 as well as R15, are two distinct products, they share many similarities. This is because their resistance capabilities are pretty similar. But, here are some similarities between the two products:

  • Insulation is available on the face or unfaced. The insulation that is faced has an enclosure on their heads. Unfaced insulations are great to use in conjunction with existing insulation. But both R13 and R15 are available on the face or unfaced.
  • Today, the majority of homes have walls of 2×4. But the wall you’re using isn’t necessarily 4 inches in depth. In most cases, it’s 3.5 inches. So, R13 and R13 or R15 are the best options for a wall that is 2×4.
  • Although they may differ in their R-value, both offer the same thermal protection. However, it’s important to make sure you use them correctly. There are all the required instructions in their user’s guides.

R13, along with R15, are similar in these aspects. But, they have certain differences that affect your insulation choices. We’ll talk about these in a minute.

R13 vs. R15: Which One You Should in Different Situations

Now the question is which one you should choose for your job? R13 vs. R15: which is the better choice? There are a few differences between them, but there are some distinct features between the two. These features can help you determine which you’ll need to purchase. Below, we’ve reviewed which type of insulation you should purchase depending on various characteristics and scenarios:

Efficiency

Efficiency in energy is the primary priority when buying insulation. In addition, insulation allows you to control the temperature inside your home.

From our previous review, we’ve learned that insulation with a higher R-value performs more effectively. So, if you’re searching for insulation that is energy efficient for your home, we suggest you purchase R15 Insulation instead of R13.

The difference in strength isn’t much. It’s nearly identical. Thus, R15 gets the pick with a slight advantage.

Pest Control

Insulation is also a good method of preventing pests from your residence. In addition, the fact that many pest control firms also provide insulation to eliminate insects.

Ortho Home Defense Pest Control

However, you should apply specific pesticides. This will enable you to eliminate the ants and spiders within your home along with other bugs too. Make sure you choose the right pesticide that is effective.

It is a matter of the pesticide that you pick. Thus, you can purchase both R13 and R15 to eliminate pests at home.

Read more: Is Ortho Home Defense Max Safe for Pets?

Moisture Control

Insulation can also play a minor function as they play a role in controlling the moisture in the home. But, a variety of other factors can affect moisture control. So, it is possible to say that R values for insulation do not have enough impact on the control of the moisture. So, it is possible to select R13 and R13, and R15 to regulate moisture.

But, if the house is damp, it decreases the R-value of Insulation dramatically. This is why R15 is the better option for this. But it’s not going to have much of an impact.

Noise Reduction

If you are looking to lessen the sound level of your house by insulating it, this is a fantastic option. But, they are able to in reducing both outdoor and indoor noises. The air that comes out of the insulation can help reduce the sound.

Additionally, insulations come with specific models that reduce noise. If you’re looking for a high level of noise reduction, you should opt for the models. However, standard insulations, such as R13 and R15, can do a decent job.

So, you can utilize R13 and R13, and R15 to reduce noise. They will give you the same output.

FAQ Realted to R13 vs. R15

Is R15 better than R13?

The R13 value is similar to R15. However, R values with higher values will provide greater performance. Thus, in terms that efficiency is important, R15 is better than R13.

Are there any noticeable differences between R13 or R15 Insulation?

Both R13 and R15 have similar characteristics and outcomes. However, there’s one slight distinction between the two. Since R15 has a higher R-value, it’s also less prone to the flow of heat.

What is the R-value of a 2×4 Wall?

The majority of walls are constructed from 2×4 studs. But modern walls aren’t four inches thick. They are half an inch smaller. So R13 and R13 or R15 are suitable for a 2×4 wall.

Final Thoughts

We’re hoping you’ve found the answer to R13 vs. R15. Their R-values are extremely similar. Therefore, they provide almost identical performance. Thus, you could go either way. However, if you want to would like to know our recommendations, then we’ll suggest you go for R15 because it’s more efficient.

Home Base Project Team
At The Home Base Project, we offer practical, real-life tips and inspiration about DIY, decorating and gardening. The Home Base Project provide the best information about home renovation and design, connecting home design enthusiasts and home professionals across the world.

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