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Insulation Information Center

Choosing Insulation

Be prepared before you buy. Learn how to select the right kind of insulation to match your needs and budget.

Learn About R-Values

R-value refers to the ability of insulation to block heat, not its thickness. The higher the R-value, the better its insulating power. Find general recommendations for your region here.

The Insulation Blog

Insulating your home properly can make a big difference on your utility bills and the comfort of your home. Learn more about how to "Rule Your Attic" from the Home Depot Community.

Insulation Project Tips

The Home Depot reveals tricks of the trade to help you find the right insulation, tools and materials that will make your next insulation project a successful one.

Insulation & Accessories

Insulation allows you to keep your home cooler in the summer and warmer in the winter months. You can enjoy lower energy bills and the creation of a more comfortable home environment by insulating. Adding insulation will also increase the quiet in your home by creating a sound barrier that keeps out unwanted sounds, while adding to your privacy by helping to keep sounds from inside the home from being audible on the outside. 

Find all your insulation supplies, tools and equipment at The Home Depot. We have a large selection, including spray foam insulation, garage door insulation, acoustic panels, attic insulation and fiberglass insulation. We sell all the supplies and materials you will ever need to insulate your home, including blow-in insulation, spray insulation, radiant barrier insulation, foam insulation, styrofoam insulation and a wide range of insulation supplies. To get maximum benefits use insulation in various areas of the home like attic door insulation, duct insulation, wall insulation and ceiling insulation. We have a variety of methods to get your insulation where it needs to be, including blow in insulation, spray foam, insulation foam and spray on insulation. 

R-value measures the ability to transfer heat from hot to cold – the higher the R-value, the more a material prevents heat transfer. Learn about R-values, and at The Home Depot, we have a variety of R-value insulation to meet your needs. From R13 insulation, R30 insulation to R38 insulation and more, we have the insulation that you need to get the job done. There is also a wide variety of insulation available to meet any special needs you may have. Including sound proof insulation, acoustic foam, soundproof panels, sound absorbing panels, cellulose insulation and Batt insulation.

Beyond our expansive inventory of insulation and supplies, turn to The Home Depot for advice, Buying Guides and step-by-step instructions for insulation projects and even professional insulation installation. When you are in the store, the knowledgeable associates at The Home Depot can help you decide which insulation is the best for your individual needs. The Home Depot is the best insulation resource for do-it-yourselfers and professionals.


The original and now legendary Auralex Studiofoam Wedges The original and now legendary Auralex Studiofoam Wedges used by professional musicians and recording engineers all over the world is now available for your personal home studio or rehearsal room. Control the audio in your dedicated space with our high density open-celled acoustical studio foam. Auralex Studiofoam Wedges are designed ...  More + Product Details Close
Make your attic access energy efficient with the Make your attic access energy efficient with the E-Z Hatch Deluxe R-42 Attic Access Door. It provides an air-tight high-performance scuttle door that is more energy efficient than pull down ladders. The kit includes a wood frame preinstalled trim and an insulating door. It is R-50 triple-gasketed pre-finished and fits ...  More + Product Details Close
Owens Corning Garage Door Insulation Kit is ideal Owens Corning Garage Door Insulation Kit is ideal for use on uninsulated metal garage doors. The kit comes with eight fiberglass insulation panels with a durable washable white vinyl facing. Also included are latex gloves and repair tape along with retainer clips and a self-adhesive fastening system that provides a ...  More + Product Details Close
Keep the water in your tank hotter for Keep the water in your tank hotter for a longer period of time with the Reach Barrier 3016 Single Reflective Air Water Heater Insulation Kit. It fits most sizes of water heater tanks and saves money. Water heating can account for 14% to 25% of the energy consumed in a ...  More + Product Details Close