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Insulation Ratings and HVAC Efficiency

Oct 17, 2023 | HVAC System


HVACAround 90% of American homes are not adequately insulated. Good insulation will ensure that your home runs efficiently and leaves a minimal carbon footprint. HVAC costs can drop dramatically when heated or cooled air stays inside the house thanks to insulation.

Heating and cooling consume the majority of electricity in households with an HVAC system. Good insulation can easily translate into savings over the long-term.

How insulation works with your HVAC system

There are many types of insulation materials. The R-Value of each type of insulation material is determined by how well it can insulate a home. Insulating materials are assigned a R-Value to help homeowners choose the best type. The material’s ability to insulate a Knoxville home is determined by its R-Value. This helps keep HVAC costs down. It is important to remember that the R-value for a given region can vary. States with more severe winters will typically need a higher R value than those with milder winter months. Your local HVAC contractor may have more information about R-Value.

Comparison of insulation ratings

There are many materials available for home insulation. However, not all materials have the same insulation properties. HVAC contractors in Knoxville TN are the best people to consult on this matter. Below is a list of insulation materials and their R-Values per inch.

These blankets and batts are made of either fiberglass or rock wool and have an R-Value between 3.1 and 4.0.

Blown-in loose-fill insulation – This type of insulation can also include rock wool, fiberglass, and cellulose. The R-Value for blow-in loose-fill insulation is typically between 2.4 and 4.0.

HVACRigid foam insulation – There are many types of rigid foam insulation. Some are made of polyurethane or polystyrene. R-Values for rigid foam insulation are usually between 3.5 and 7.5.

Spray foam is a popular type of insulation material. It can also be made from polyurethane, polyicynene, and has an R-Value between 3.6-7.0.

The best places to install insulation

The HVAC ducts require insulation to stop air from escaping. There are many components to your HVAC system that push warm or cool air around the house. It is crucial to ensure that air flows freely within the house.

Unfinished attic floor – If your attic floor is not finished, make sure you insulate it. This will act as a barrier and reduce heat transfer to the area below. To prevent leakage, make sure you insulate the access doors.

Walls and ceilings of the finished attic. If you plan to use your attic for a home office, or other purpose, make sure both walls and ceiling are insulated.

HVAC costs can be reduced by keeping your home well-insulated. Energy savings can be even greater when you have your HVAC system maintained by professionals. Call J.C.’s Heating and Air now.

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J.C.’s Heating and Air
3110 Henson Rd Suite 7
Knoxville, TN 37921

Areas Served: CorrytonFountain CityHalls CrossroadsFarragutPowellKnoxvilleKnox CountyOak RidgeLenoir City

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J.C.'s Heating and Air
3110 Henson Rd Suite 7
Knoxville, TN 37921

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