Which is Better: Fiberglass or Spray Foam in Ottawa? A Complete Guide

Fiberglass vs. spray foam insulation comparison for Ottawa homes.

Choosing the right insulation is crucial for Ottawa homeowners and business owners who want to improve energy efficiency, reduce heating costs, and maintain a comfortable indoor environment. If you’re wondering, which is better: fiberglass or spray foam in Ottawa?, this guide will help you compare both options in terms of cost, performance, durability, and environmental impact.

Understanding Fiberglass Insulation

What Is Fiberglass Insulation?

Fiberglass insulation is one of the most widely used insulation materials, composed of fine glass fibers. It typically comes in batts or rolls, making it easy to install in walls, attics, and floors.

Pros of Fiberglass Insulation:

  • Affordable – One of the most cost-effective insulation options.
  • Easy to Install – Can be a DIY-friendly option.
  • Fire-Resistant – Made from non-combustible materials.
  • Good Thermal Performance – Provides decent insulation against heat loss.

Cons of Fiberglass Insulation:

  • Lower R-Value per Inch – Offers less insulation per inch compared to spray foam.
  • Air Leakage – Does not create an airtight seal, allowing air movement through gaps.
  • Moisture Absorption – Can lose effectiveness when exposed to moisture.
  • Settling Over Time – May compress, reducing its insulating power.

Understanding Spray Foam Insulation

What Is Spray Foam Insulation?

Spray foam insulation is a liquid polyurethane that expands upon application, filling gaps and creating an airtight seal. It comes in two main types: open-cell and closed-cell spray foam.

Pros of Spray Foam Insulation:

  • Superior R-Value – Provides higher insulation per inch, maximizing energy efficiency.
  • Air Sealing – Expands to fill gaps and cracks, preventing drafts.
  • Moisture Resistance – Closed-cell spray foam acts as a moisture barrier, reducing mold risks.
  • Durability – Long-lasting and does not settle or degrade over time.

Cons of Spray Foam Insulation:

  • Higher Cost – More expensive upfront compared to fiberglass.
  • Professional Installation Required – Needs expert application for safety and effectiveness.
  • Potential Off-Gassing – Requires proper ventilation during installation.

Cost Comparison: Fiberglass vs. Spray Foam in Ottawa

The cost of insulation depends on factors such as material, labor, and the size of the project. Here’s an approximate cost breakdown:

Insulation TypeCost per Square Foot (Installed)
Fiberglass$0.40 – $1.50
Open-Cell Spray Foam$0.50 – $2.00
Closed-Cell Spray Foam$1.00 – $3.00

Although fiberglass is cheaper upfront, spray foam can result in lower energy bills over time due to its superior air-sealing properties.

Energy Efficiency and Performance in Ottawa’s Climate

Ottawa experiences harsh winters and humid summers, making insulation a key factor in maintaining indoor comfort. Here’s how both materials perform:

  • Fiberglass Insulation: Provides good thermal resistance but allows some air leakage, which can lead to drafts and higher energy costs.
  • Spray Foam Insulation: Acts as both an insulator and air barrier, reducing energy loss and keeping indoor temperatures stable year-round.

Environmental Impact

If sustainability is a priority, here’s how both materials compare:

  • Fiberglass: Made from recycled glass, but can lose efficiency over time.
  • Spray Foam: Reduces energy consumption but contains chemicals that can have environmental concerns during production.

Best Applications for Each Insulation Type

Use Fiberglass If:

  • You’re looking for a budget-friendly insulation solution.
  • Your project is a DIY installation.
  • You need insulation for walls, floors, or attics where air sealing is less critical.

Use Spray Foam If:

  • You want superior insulation for extreme Ottawa weather.
  • You need to prevent air leaks and moisture intrusion.
  • You are insulating basements, crawl spaces, or hard-to-reach areas.

Final Verdict: Which Is Better for Ottawa Homes?

When deciding which is better: fiberglass or spray foam in Ottawa?, it depends on your specific needs:

  • If you prioritize affordability and ease of installation, fiberglass insulation is a solid choice.
  • If you want the best long-term energy savings and airtight insulation, spray foam is worth the investment.

Consulting with an insulation expert can help determine the best solution for your home or commercial property.

Get Expert Insulation Services in Ottawa

At CM Insulation, we specialize in both fiberglass and spray foam insulation to meet your needs. Contact us today for a consultation and let our experts help you choose the best insulation for your Ottawa home or business.

Call us now or visit cminsulation.ca to get a free estimate!

Leave a Reply

Your email address will not be published. Required fields are marked *