Types of Attic Insulation

Home insulation, made from blown-in cellulose or fiberglass rolls that are laid out between attic joists, improves the thermal efficiency of buildings and homes. It reduces heat loss in winter and air conditioning costs in summer, helping to create a more comfortable indoor environment. It also aids in weatherproofing structures by reducing drafts and limiting moisture absorption.

The process of insulating an attic can vary depending on the type of insulation used, and its application requires specialized equipment that only professionals have access to. ENERGY STAR® recommends that professionals follow the manufacturer’s instructions for installing attic insulation to ensure it is installed correctly and to avoid air leaks and other problems.

There are 4 types of attic insulation:

Blanket or batt insulation, which is available in a variety of forms including fiberglass, mineral wool and recycled paper; often comes precut to fit typical attic rafters and joists. Offers a high R-value and is relatively inexpensive. Can suffer from compression and water damage, requiring regular maintenance. May contain asbestos, making it unsuitable for older homes.

Loose-fill insulation, which is a mixture of fiberglass, cellulose and mineral wool; can be blown or rolled into attics. Offers a higher R-value than blanket insulation, and fills gaps and crevices effectively. May settle over time, reducing effectiveness. May be irritated by sand or dirt particles, and may require special handling equipment.

Spray foam insulation, which is an advanced, energy-efficient option. It can be installed in new attics or re-insulate old ones; is fire-resistant, and provides sound insulation. It can be costly to install, but offers a high R-value and excellent air barrier. The chemicals used to make spray foam can irritate skin and eyes, so safety equipment is required when working with this product.

Spray Foam Insulation Indianapolis
105 N Sherman Dr Indianapolis, IN 46201
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