The Best Type of Shed Insulation for Wooden Sheds: What to Know

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If you live in a cold part of the country, a well-insulated wooden shed will benefit you. Excellent insulation allows you to use it throughout the year, no matter what season. If you are utilizing your wooden shed as storage and as an office or a workshop, you can freely use it even in cold winter months. If you plan to improve your shed’s insulation, here are some things you should know first.

The Best Material for Wooden Shed Insulation

If you need some recommendations, here are the common materials that provide insulation best:

  • Bubble wrap – If you are looking for the most cost-effective way to insulate your wooden shed, using bubble wrap can provide you the heat you need. Here are some tips that you can follow when using this material:
  • Attach the bubble wrap to the framing of the shed instead of the actual panel.
  • To ensure that the heat will not escape any gaps, make sure that you overlay another layer of bubble wrap on the end of the strips.
  • Keep the bubble wrap secured by using a staple or tack.
  • An MDF board placed over the panel will also help secure everything into place. 
  • Fiberglass wool – This material is the best one to insulate your shed. It can resist heat flow and can also keep conditioned air inside. Fiberglass wool can also provide better noise insulation, making it a perfect material if you plan to use your wooden shed as a workspace. Here are some useful tips you can use if you opt for this material:
  • Make sure to wear protective gear, such as gloves and eye, nose, and mouth cover, when working with this material.
  • Place a breathable membrane first onto the inner walls of the shed. A Tyvek wrap would work.
  • Place the fiberglass wool on top of the wrap. 
  • Cover the fiberglass with a solid sheet wood board for better effect. 

Other Things to Keep in Mind

  • Make sure that your shed’s windows and doors fit well in the shed. Any gap can let the cold air in and the heated air out, making your built-in insulation useless. Adding a foam filler in the edges or gaps can prevent this from happening.
  • Inspect the whole shed for any signs of leaks for the same reason. Pay attention to the corners and the overlaps in the flooring and roofing. If your shed and its insulation become damp, it can result in mold spread and wood decay. 
  • Check the gaps for any cladding. Make sure to seal them and use a moisture-resistant and weatherproof sealant. Doing this step can increase your shed’s protection against moisture and condensation. 
  • Remember the purpose of your shed. The type of insulation that will work best for your shed depends on its purpose. For example, if you plan to stay in the shed for long hours, you must install a breather membrane between the insulation and the shed walls. It can lessen the chance of moisture buildup caused by human presence. 


Insulating a shed does not need to be super expensive. What you need to focus on is the effectiveness of the materials you will use. Remember that your goal is to make the structure warm and good at retaining heat. Any of the two materials mentioned above can help meet your needs.

If you need any more shed-related information, we have you covered. Shed Mechanics is your go-to site for tips, guides, and tutorials, from how to make a shed roof to the best material for shed interior walls. Bookmark this webpage to learn more. 

If you are wondering about techniques on how to build a shed, check out our My Shed Plan website to see how we can help.

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