Is Spray Foam Insulation Suitable for Older Homes in Warren, MI?

Chris Williamsoon • April 3, 2025

Is Spray Foam Insulation Suitable for Older Homes in Warren, MI?

Older homes in Warren, MI are known for their charm and character, but they often lack proper energy-efficient insulation. Many homeowners struggle with drafty rooms, high energy bills, and inconsistent indoor temperatures. If you own an older home, you may be wondering: Is spray foam insulation a good option?

The answer is yes—spray foam insulation can be an excellent way to improve energy efficiency, comfort, and moisture resistance in older homes. However, there are a few key factors to consider before installation.

Understanding Spray Foam Insulation

Spray foam insulation is a polyurethane-based insulation material that expands upon application, creating a tight thermal seal. It is commonly used to fill gaps, cracks, and other spaces where air leaks occur.


There are two main types of spray foam insulation:

  • Open-Cell Spray Foam
  • Lightweight and flexible
  • Ideal for interior walls and soundproofing
  • Allows some air permeability
  • More affordable than closed-cell foam

  • Closed-Cell Spray Foam
  • Denser and more rigid
  • Provides a higher R-value (better insulation performance)
  • Moisture-resistant, preventing mold and mildew
  • Best for exterior walls, crawl spaces, and basements

Both options help reduce energy loss and enhance indoor comfort in older homes.

Benefits of Spray Foam Insulation for Older Homes in Warren, MI

1. Enhances Energy Efficiency

Older homes were built before modern energy codes, meaning they often lack adequate insulation. Spray foam insulation seals air leaks in attics, walls, and crawl spaces, reducing heat loss during Michigan’s cold winters and keeping homes cool in summer.

2. Reduces Heating and Cooling Costs

Because spray foam insulation creates an airtight barrier, it prevents heat from escaping in winter and keeps cool air in during summer. This can reduce energy bills by up to 50%, making your home more cost-effective to heat and cool.

3. Prevents Moisture and Mold Issues

Many older homes in Warren suffer from moisture problems, which can lead to mold and mildew growth. Closed-cell spray foam insulation is moisture-resistant, helping prevent water damage in basements, crawl spaces, and exterior walls.

4. Improves Indoor Air Quality

By blocking outdoor pollutants, allergens, and dust, spray foam insulation improves indoor air quality. This is especially beneficial for older homes that may have drafty windows and walls allowing contaminants inside.

5. Adds Structural Strength

Since closed-cell spray foam is rigid, it can strengthen walls and ceilings, which is especially useful for older homes with aging structures.


Challenges of Installing Spray Foam Insulation in Older Homes

1. Evaluating Existing Insulation

Older homes may have old fiberglass or cellulose insulation that needs to be removed or upgraded before installing spray foam. A professional insulation contractor can assess whether removal is necessary.

2. Ventilation Considerations

Because spray foam creates an airtight seal, proper ventilation is essential. Without it, moisture can become trapped inside, leading to potential issues. An expert can ensure balanced airflow while maintaining energy efficiency.

3. Cost Considerations

Spray foam insulation can have a higher upfront cost compared to traditional insulation. However, the long-term energy savings and durability make it a cost-effective investment for older homes.



Best Areas to Apply Spray Foam Insulation in Older Homes

  • Attics – Prevents heat from escaping through the roof

  • Walls – Fills gaps and reduces air leakage

  • Basements & Crawl Spaces – Prevents moisture buildup and mold growth

  • Around Windows & Doors – Seals small cracks to improve energy efficiency

Is Spray Foam Insulation Right for Your Older Home in Warren, MI?

If you’re looking to reduce energy bills, improve comfort, and prevent moisture issues, spray foam insulation is a great option for older homes. However, proper assessment and installation by a professional insulation contractor in Warren, MI is crucial for achieving the best results.


Older homes in Warren can greatly benefit from modern insulation solutions like spray foam insulation. With its energy-saving properties, moisture resistance, and durability, it’s a smart choice for homeowners looking to enhance their home’s efficiency.


Ready to Upgrade Your Insulation?

If you're considering spray foam insulation for your older home in Warren, MI, contact Superior Spray Foam Insulation of Warren today to discuss your options and schedule an assessment.

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