Call icon

Phone Number:


Attic Insulation

What Type of Insulation Is Best for an Attic?

Insulating your attic is crucial for maintaining a comfortable and energy-efficient home. It helps to prevent heat loss in the winter and heat gain in the summer, reducing your energy bills and improving the overall comfort of your living space.

However, not all insulation is created equal, and choosing the wrong type can lead to subpar results. That’s why it’s important to understand the different options available and make an informed decision.

When it comes to attic insulation, Star Spray Foam stands out as a top choice. Its unique properties and benefits make it an excellent option for effectively insulating your attic and reaping the long-term advantages.

Best Insulation Materials for Attics

Choosing optimal attic insulation materials is important for improving home energy efficiency and comfort. Explore top-rated options to make informed decisions, optimizing your living space and potentially reducing energy costs.

Fiberglass Insulation

Fiberglass insulation is one of the most popular choices for attic insulation. It is made of tiny glass fibers that trap air and create a barrier against heat transfer.


  • Cost-effective: Fiberglass insulation is relatively affordable, making it a budget-friendly option for homeowners.
  • Easy installation: It is simple to install fiberglass insulation, as it comes in pre-cut batts or rolls that can be easily placed between joists or studs.
  • Fire-resistant: Fiberglass insulation is non-combustible, providing an added layer of safety.


  • Prone to air leakage: Fiberglass insulation can allow air to pass through, reducing its effectiveness in preventing heat loss or gain.
  • May cause skin irritation: Handling fiberglass insulation without proper protective gear can cause skin irritation or respiratory problems.

Cellulose Insulation

Spraying cellulose insulation on the wall. Application with added waterCellulose insulation is made from recycled paper and treated with fire-retardant chemicals. It is blown into the attic using specialized equipment, creating a dense layer of insulation.


  • Excellent thermal performance: Cellulose insulation has a higher R-value (a measure of thermal resistance) than fiberglass, providing better insulation.
  • Effective air sealing: The blown-in nature of cellulose insulation helps fill gaps and cracks, minimizing air leakage.
  • Environmentally friendly: Cellulose insulation is made from recycled materials, making it a sustainable choice.


  • Requires professional installation: Cellulose insulation requires specialized equipment and expertise for proper installation.
  • Can settle over time: Over time, cellulose insulation may settle, reducing its effectiveness. Regular inspection and maintenance are necessary.

Spray Foam Insulation

Spray foam insulation is a versatile option that expands upon application, creating an airtight seal. It is typically made of polyurethane and comes in two types: open-cell and closed-cell foam.


  • Excellent thermal performance: Provides superior insulation and minimizes heat loss.
  • Air and moisture barrier: Acts as an effective air sealant, reducing drafts and preventing moisture infiltration.


  • Costly installation: Initial expenses can be high compared to other insulation types.
  • Professional application required: Proper installation is crucial and typically requires a trained technician.

Efficiency and Energy Savings

Efficiency and energy savings are at the forefront of modern construction and home improvement efforts. Insulation plays a pivotal role in achieving these goals, as it acts as a barrier against heat loss and gain, contributing to a more comfortable indoor environment while reducing energy consumption.

How Insulation Impacts Energy Bills

Proper insulation in the attic plays a significant role in maintaining a comfortable temperature inside your home. It acts as a barrier, preventing heat from escaping during the winter and entering during the summer. By reducing heat transfer, insulation helps your HVAC system work more efficiently, leading to lower energy consumption and reduced energy bills.

Calculating R-Value

When selecting insulation for your attic, it’s important to consider the R-value. R-value measures the insulation’s resistance to heat flow. The higher the R-value, the better the insulation’s ability to resist heat transfer. The optimal R-value for your attic will depend on factors such as climate, local building codes, and your budget.

Proper Installation for Optimal Efficiency

Regardless of the insulation material you choose, proper installation is crucial for optimal efficiency. Gaps, voids, or compressed insulation can significantly reduce its effectiveness. Ensure that the insulation is evenly distributed and covers the entire attic space, including walls, floors, and the attic hatch. Use proper sealing techniques to prevent air leakage and maintain the insulation’s integrity.

DIY vs. Professional Installation

Thermal Insulation- Star Spray FoamWhen considering attic insulation installation, you’re faced with the choice between a DIY approach and hiring professionals. While the allure of cost savings with DIY can be tempting, a closer examination reveals the clear advantages of professional installation.

Professionals bring expertise and experience to the table, ensuring the insulation is installed correctly and efficiently. Their knowledge is instrumental in achieving optimal energy efficiency and comfort in your home. In contrast, DIY projects may lack the precision and effectiveness of professional work, potentially leading to subpar insulation performance.

Moreover, professional installation offers the advantages of speed and convenience. Trained technicians can complete the job swiftly, minimizing disruption to your daily routine. On the other hand, DIY insulation projects can be time-consuming and demanding, especially for those without prior experience.

Additionally, professional installations often come with warranties, providing long-term protection for your investment. In contrast, DIY projects lack such guarantees and can leave you vulnerable to future issues.

While professional attic insulation installation may come with a higher upfront cost, the benefits in terms of quality, efficiency, and peace of mind make it a wise investment when prioritizing your home’s energy efficiency and comfort.

Hiring the Right Attic Insulation Contractor

When hiring an insulation contractor, it’s essential to do thorough research.

  • Look for contractors with a good reputation, positive customer reviews, and proper certifications.
  • Request quotes from multiple contractors and compare their services, pricing, and warranties.
  • Additionally, ensure that the contractor is knowledgeable about local building codes and regulations.

If you are in need of attic insulation services, look no further than Star Spray Foam. Our team of experts is dedicated to providing top-notch insulation solutions for your home. Our attic insulation services can help you achieve various goals, including improving energy efficiency, reducing noise, and creating a more comfortable living environment.

Contact us today to schedule a consultation and learn more about how Star Spray Foam can meet your insulation needs.


15 Benefits and Importance of Insulating an Attic