If you want to make your home more comfortable and reduce energy waste, boosting attic insulation is one of the best ways to do it. But you should know about the different types of insulation available to ensure you are getting the right amount for your area and budget.
Local building codes set minimum requirements that architects, contractors, and homeowners must follow during construction. They cover everything from specialty trades, like plumbing and electricity, to energy code compliance, such as insulating your home. In Georgia, the state adopted a 2015 version of the International Energy Conservation Code (IECC) with Georgia-specific amendments that govern new construction and renovation projects.
Attic Insulation 101: What Georgia Homeowners Should Know | Georgia Insulation
For example, IECC requires that attic insulation in climate zones be 13-14 inches thick (R-38) for new homes. But most attics in Georgia need much more—ideally R-50 (stable cellulose) or higher—to meet ENERGY STAR and utility company recommendations and qualify for rebates and other incentives.
Loose-fill or blown-in insulation: Fiberglass batts, spray foam insulation, and cellulose are loose materials that can be blown into place with a machine. This type of insulation is fairly inexpensive, but can lose some effectiveness if it gets wet. It also off-gasses during and after installation, and may need to be ventilated properly.
Rigid foam insulation: Made from polystyrene, polyisocyanurate, or polyurethane; comes in boards or panels. Provides a high R-value per inch, is moisture-resistant, and can be installed on attic floors or wall cavities. It is more expensive than other types, and requires professional installation.
Georgia Insulation
2092 Crow Rd, Gainesville, GA 30501
(770)758-4459
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