Quick Answer
The cost difference between cellulose and fiberglass insulation is generally $0.50 to $1.00 per square foot, with cellulose typically being the more expensive option.
Material Costs Comparison
Cellulose insulation is made from recycled paper products and typically costs between $1.50 to $2.50 per square foot, installed. Fiberglass insulation, on the other hand, is made from glass fibers and costs between $0.50 to $1.50 per square foot, installed. This cost difference is largely due to the higher labor costs associated with cellulose installation, as it requires a specialized blowing machine to fill the insulation space.
Environmental Impact and Performance
While cellulose is a more expensive option, it has some advantages over fiberglass. Cellulose is a natural, sustainable material that is resistant to mold and mildew growth, making it a good choice for homes in humid climates. Additionally, cellulose has a higher R-value (thermal resistance) than fiberglass, meaning it can provide better insulation performance in the same thickness. However, fiberglass is still a good option for homes with limited budget constraints, as it is widely available and easy to install.
Installation Techniques and Considerations
When installing cellulose or fiberglass insulation, it’s essential to follow proper techniques to ensure optimal performance and energy efficiency. A key consideration is ensuring that the insulation is properly installed to fill the insulation space, with a minimum of 3-4 inches of insulation in walls and 6-8 inches in ceilings. Additionally, it’s crucial to wear protective gear when handling insulation materials, as both cellulose and fiberglass can cause respiratory problems if inhaled.
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