In today's world, energy efficiency is a priority for homeowners. One of the most effective ways to increase energy efficiency and reduce heating and cooling costs is by properly insulating your attic. However, with the diverse range of insulation types available on the market, making a choice can be daunting. This article will compare different types of attic insulation and their average costs to help homeowners make an informed decision.
Fiberglass Batts
Fiberglass batts are a popular choice for attic insulation due to their affordability and ease of installation. They come in pre-cut panels that can be easily fit between attic studs. However, while less expensive upfront, fiberglass batts may not be the most cost-effective solution in the long run. They have a lower R-value (a measure of thermal resistance) compared to other types of insulation, meaning they may not provide optimal energy efficiency.
Blown-In Insulation
Blown-in insulation, often made from cellulose or fiberglass, is another common type of attic insulation. It is blown into place using special equipment, allowing it to fill nooks and crannies for a more thorough insulation job. Blown-in insulation typically has a higher R-value than fiberglass batts, offering better thermal resistance. However, it requires professional installation, which can add to the overall cost.
Spray Foam Insulation
Spray foam insulation provides a high R-value and excellent air sealing, making it one of the most effective types of attic insulation. It expands upon application, creating a tight seal that helps prevent air leakage. However, spray foam is more expensive than other types of insulation and requires professional installation, increasing initial costs.
Insulation Costs
The cost of attic insulation varies greatly depending on the type of insulation, the size of your attic, and the desired thickness of the insulation. On average, you can expect to pay between $1.50 and $3.50 per square foot for fiberglass batts, $1.00 to $1.50 per square foot for blown-in insulation, and $2.00 to $3.50 per square foot for spray foam.
Long-Term Efficiency
While initial cost is a major factor, homeowners should also consider the long-term energy savings of each insulation type. A higher R-value insulation such as spray foam may have a higher upfront cost, but could save more money in heating and cooling costs over time.