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Find hidden energy savings and extra storage in your attic

Alabama Living Magazine

Do you have any tips on finding hidden energy savings in my home?

I’ve been in a lot of homes. One common hiding spot for energy savings is the attic. It is also a common location for storing holiday decorations and infrequently used sentimental items.

Yet, using your attic for storage can be problematic when trying to maximize your home’s energy efficiency. Let’s explore how you can improve insulation levels and properly store items in your attic.

Building an attic storage platform offers extra storage space and helps maintain the energy-efficiency of the attic with insulation underneath it. Illustration Courtesy Sarah Decker, Pioneer Utility Resources

Attic insulation is one of the best low-cost ways to make your home efficient. People often associate insulation with keeping your home warmer in the winter, but it also provides benefits in the summer. Insulation reduces heat transfer from the attic to the house, which lowers energy bills for air conditioning and makes your home more comfortable. 

Attic insulation is measured in R-value, which is a measurement of how well a material resists the flow of heat. For attic insulation, thicker is better. The recommended R-value is typically between R-38 and R-60, depending on your climate. Hawaii and the southernmost tips of Florida and Texas recommend R-30. Measured in inches, that ranges from around 10 to 20 inches, depending on the type of insulation you have. In most homes, the ceiling joists are buried in insulation to achieve the recommended R-value.

The problem with attic storage is it typically doesn’t offer enough space for the recommended R-value. Often, plywood or boards are placed directly on top of the ceiling joists, which isn’t enough space for the insulation. Insulation can get compacted by people moving items in or out, reducing the effective R-value. 

Ideally, the attic would not be used for storage so it can be properly insulated, but that’s not feasible for everyone. Here are some strategies for maintaining attic storage and recommended insulation levels.

While using your attic for storage, build an attic storage platform to maintain insulation levels and lock in savings and comfort. Photo courtesy Mark Gilliland, Pioneer Utility Resources

The best location for attic storage is over an unconditioned area of your home, such as the garage. You don’t need insulation in attic spaces over a garage or unconditioned area because you are not heating or cooling the space below. This makes it the perfect spot to tuck away items for storage. 

If that isn’t an option, consider minimizing the number of stored items or the storage area’s footprint. A great way to do this is by building an attic storage platform. A raised platform allows the space underneath it to be fully insulated. These platforms are available in ready-to-install kits, or you can buy materials and build them yourself. 

Allow enough space underneath the platform to achieve the proper R-value. Use lumber to build a frame perpendicular to the existing joists and cover it with plywood or oriented strand board. Once your storage area is set up, add insulation inside the platform to bring the R-value up to the proper level.

Your attic might also have trusses that allow you to build shelves and maximize space by storing items vertically. 

Always wear a dust mask or respirator when working in the attic. Don’t forget to weatherstrip the attic hatch to ensure a tight seal. Take a look around your attic to see if you can find any hidden opportunities for energy savings.


Miranda Boutelle is the chief operating officer at Efficiency Services Group in Oregon, a cooperatively owned energy efficiency company.

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