Insulating Basement Walls – Spray Foam Vs. Fibreglass Batts

Proper basement insulation is essential for maintaining energy efficiency, preventing moisture issues, and ensuring a comfortable indoor environment. Homeowners in Winnipeg often choose between spray foam and fibreglass batts when insulating basement walls. Each option has advantages and considerations that should be assessed based on insulation performance, moisture resistance, and installation requirements. Proper insulation also helps reduce heating and cooling costs, improves indoor air quality, and enhances the overall durability of a home's structure by preventing issues related to condensation and temperature fluctuations.

Call our team at Foametix Insulation today for more information about basement insulation for homeowners in Winnipeg.

Spray Foam Insulation

Spray foam insulation is a polyurethane-based material that expands upon application, creating an air-sealed barrier. This type of insulation is classified into open-cell and closed-cell varieties, with closed-cell spray foam providing a higher R-value per inch.

Advantages:

• High R-value: Closed-cell spray foam offers a higher R-value than fibreglass batts, enhancing thermal performance.

• Air and moisture barrier: It forms a seamless air barrier, reducing the risk of air leaks and condensation-related issues.

• Mould and mildew resistance: Spray foam does not support mould growth due to its composition, making it suitable for basement environments.

• Longevity: Properly applied spray foam insulation can last decades without sagging or deterioration.

Considerations:

• Cost: Spray foam insulation generally costs more upfront than fibreglass batts.

• Professional installation required: The application requires specialized equipment and trained professionals for proper installation and safety compliance.

• Off-gassing: Spray foam products emit volatile organic compounds (VOCs) during installation, requiring proper ventilation; therefore, a 24-hour vacancy is required after installation.
  

Fibreglass Batts Insulation

Fibreglass batts are pre-cut insulation panels made from fine glass fibres. They are commonly used in residential applications due to their affordability and ease of installation.

Advantages:

• Cost-effective: Fibreglass batts are generally more affordable than spray foam insulation.

• DIY-friendly installation: Homeowners can install fibreglass batts without specialized equipment.

• Non-combustible: Fibreglass does not readily burn, adding fire resistance.

Considerations:

• Lower R-value: Fibreglass batts have a lower R-value per inch than spray foam, requiring thicker insulation for equivalent thermal resistance.

• Air leakage risk: Fibreglass does not create an air barrier, making it susceptible to air infiltration and heat loss.

• Moisture absorption: If moisture is exposed, fibreglass batts can retain water, leading to mould growth and reduced effectiveness.

• Compression and settling: Fibreglass batts may sag or compress over time, diminishing their insulation performance.
  

Choosing the Right Insulation for Basement Walls

The choice between spray foam and fibreglass batts depends on budget, insulation requirements, and moisture control needs. Spray foam insulation offers superior thermal performance and moisture resistance, making it well-suited for basements prone to humidity and air leakage.

Foametix Insulation strives to provide high-quality basement insulation solutions tailored to specific needs. Our team endeavours to ensure proper installation for optimal energy efficiency and comfort. Contact us today to learn more about our insulation services in Winnipeg and how they can benefit your home with reliable, effective, and long-lasting insulation solutions.