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What are the Best Places to Insulate in a Home?

by | Jun 27, 2024

Are you considering adding foam insulation to your home but need help figuring out where to start?

Whether you’re looking to insulate your entire home or just specific areas, the right approach can significantly impact your home’s comfort and energy efficiency. 

Let’s explore the best places to insulate your home—attic, crawl space, and walls —and why these areas are crucial.

Best Places to Insulate in Your Home

When it comes to home insulation, the attic, walls, and crawl space are the top contenders.

While insulating the entire home offers the most benefits, each area brings unique advantages.

Attic Insulation

Did you know that an uninsulated attic can be a major source of heat loss?

As heat rises, any inadequacy in attic insulation can result in significant energy wastage. Essentially, having a poorly insulated attic is like going outside in the middle of winter without wearing a hat.

Insulating your attic with spray foam insulation can prevent treated air from leaking and prevent your furnace from overworking. This not only creates an energy-efficient house but also leads to substantial savings on your energy bills.

Wall Insulation

While attic insulation boosts energy efficiency, wall insulation is key to home comfort.

Insufficient wall insulation can cause drafts, cold walls, and discomfort. If you’re looking for a return on investment by making less of an investment, the walls are the best way to go.

Adding injection foam insulation to your walls can eliminate drafts and keep your home cozy. Additionally, heat that can’t escape through the attic will try to exit through your walls, making wall insulation crucial.

Crawl Space Insulation

Cold floors and frozen pipes are common problems associated with poorly insulated crawl spaces.

Insulating your crawl space with spray foam insulation can solve these issues. Creating a conditioned crawl space has many advantages, from warming up cold floors to saving money on monthly energy bills.

Spray foam insulation in your crawl space and rim joist not only makes your floors warmer but also protects your pipes against freezing. Moreover, it helps maintain a consistent temperature in your ductwork, ensuring better heat distribution and air conditioning throughout your home.

How to Better Insulate Your Home

Now that you understand the benefits of insulating your attic, walls, and crawl space, you might be wondering how to proceed.

The first step is to assess which area of your home needs insulation the most. If you’re experiencing high energy bills, cold floors, or drafts, these are clear signs that your home could benefit from additional insulation.

Insulating Existing Walls

If your home has older insulation or none at all, insulating existing walls can drastically improve your comfort and energy efficiency.

Injection foam insulation, like RetroFoam, can be added to existing walls without extensive renovations, making it a convenient and effective solution.

Attic and Crawl Space Insulation

Similarly, upgrading your attic and crawl space insulation can have immediate benefits.

Spray foam insulation is particularly effective in these areas due to its ability to seal gaps and prevent air leaks.

Learning More About Home Insulation

Now that you’ve read about the benefits of insulating different parts of your home, you might have more questions.

You may even be considering a comprehensive approach to sealing your home’s building envelope and adding foam insulation throughout.


For more information, check out our Learning Center. There, you will find tons of resources to answer all of your questions about foam insulation.