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How to Remove Old Insulation from Walls

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How to Remove Old Insulation from Walls Blog Feature
Eric Garcia

By: Eric Garcia on January 11th, 2024

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Removing old insulation from walls can often feel like a daunting task. 

But why exactly might you consider this step, and what are your options? 

The key here is to understand the extent of your insulation issue and weigh the options carefully. 

Every home is unique, and so are its insulation needs. Whether you're removing old insulation from walls or adding new layers, the right choice will lead to a more comfortable, energy-efficient home.

Let's dive into the details of why you might need to remove insulation and how to do it.

Understanding the Why: Symptoms Leading to Insulation Removal

You're probably here because you're experiencing what I like to call "uncomfortable house syndromes" - drafts, cold floors, cold walls, or perhaps sky-high energy bills

These symptoms might have led you to the conclusion that the insulation in your walls needs a revamp or an upgrade.

Before jumping into the removal process, it's crucial to ask: Why do you feel that the insulation in your walls needs to be removed? 

Are there other viable options? Sometimes, the insulation might not need to be removed at all, especially if it isn't degraded by moisture, pollutants, or pests. In many cases, adding more insulation to the existing setup can be a more straightforward and less invasive solution.

Everything you need to know about buying RetroFoam insulation. The essential foam insulation buying guide.

Option #1: Tear Out the Drywall

If it turns out that the insulation in your walls is indeed beyond saving - maybe it's saturated with moisture or infested with pests - the primary method of removal is through a complete teardown of the drywall. 

Yes, this approach is as invasive as it sounds, and it can be pretty expensive. It involves:

  • Clearing Out: You'll need to move all belongings from the affected areas.
  • Demolition: Removing the drywall to access the old insulation.
  • Disposal Concerns: Depending on local regulations, you might need permits or professional contractors to dispose of the old materials.

This method is akin to a full-scale home remodel and should ideally be handled by professional contractors who can also take care of the disposal process for you.

Option #2: Add New Wall Insulation

What if I told you there's a Plan B? 

A less invasive, more homeowner-friendly option? That's where adding new insulation comes into play, specifically through a technique known as injection foam insulation.

This method is ideal if you have existing fiberglass insulation. Fiberglass is easily compressible, which works to your advantage here. With injection foam insulation:

  • No Demolition Needed: The existing walls and insulation remain intact.
  • Efficiency of Installation: The foam is injected into the wall cavities, compressing the old fiberglass and filling up the rest of the space.
  • Quick and Less Disruptive: This process is typically completed within a day, significantly less disruptive than tearing down walls.

As a specialist in this field, RetroFoam offers this service, providing an efficient way to re-insulate your exterior walls without the chaos of a full remodel.

Finding the Right Solution for Your Home

If you're considering this option, it's essential to consult with professionals who can assess your situation and recommend the best course of action. 

Your local RetroFoam dealer can guide you through the process and help you make an informed decision.

Remember, building is a science, and re-insulating your home should be approached with careful consideration and expertise. Whether it involves removing the old insulation or adding new layers, the goal is to enhance your home's comfort and energy efficiency.

If you're ready to take the next step, visit our Dealer Finder page and connect with a local dealer. They will help you navigate through the options and find the best solution for your home. 

Make your home more comfortable and energy-efficient without turning your life upside down.

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About Eric Garcia

Eric brings his knowledge and training in building science, training in spray and injection foams from the manufacturers, more than eight years installing foam insulation, as well as selling and managing in the foam insulation industry. He is also BPI and Dale Carnegie certified and has taken several building science courses, including air sealing and building envelope. Eric is the Professor of Foam on our educational YouTube series Foam University. Even when Eric is off he is usually still “working” or thinking about work, but when he can get away he enjoys camping, hiking, hunting, and woodworking.