Comparative Analysis of Insulation Materials and Costs in 2025
• 10 min read
Each insulation material has its own advantages and disadvantages. Discover our detailed analysis to make the best choice.
Blown-in Fiberglass
Price: $1.75 - $3.00 / sq.ft
R-Value: 3.2 - 4.0 per inch
Advantages
- Quick installation
- Excellent moisture resistance
- 50+ year lifespan
Disadvantages
- Higher initial cost
- Requires specialized equipment
- Irritating during installation
Blown-in Cellulose
Price: $1.50 - $2.50 / sq.ft
R-Value: 3.2 - 3.8 per inch
Advantages
- Economical option
- Eco-friendly material
- Good acoustic performance
Disadvantages
- Can settle over time
- Sensitive to moisture
- Shorter lifespan
Spray Foam
Price: $3.50 - $5.50 / sq.ft
R-Value: 6.0 - 7.0 per inch
Advantages
- Best R-value
- Perfect air sealing
- Excellent durability
Disadvantages
- Very high cost
- Complex installation
- Non-recyclable
Conclusion
The choice of insulation material depends on several factors: your budget, attic characteristics, and your priorities in terms of performance and environmental impact. Blown-in fiberglass often offers the best compromise for Quebec homes.