How to Insulate Windows for Summer

Window insulation is crucial for keeping your home cool in the summer, as it effectively reduces solar heat gains. This not only decreases the energy required to maintain cool air inside your home but also leads to savings on your energy bills.

This article is going to give you tips on how to insulate windows for summer. We will also go over the different types of insulation that are available and how you should use them.

how to insulate windows for summer

What Are The Benefits Of Window Insulation?

The benefits of window insulation include: 

  • Keeping cool in the summer; 
  • Maintaining a comfortable temperature in the winter; 
  • Lowering your energy bills It is important to note that window insulation can also be used as a protective measure against the summer heat and winter cold.

Read also: How to Keep a Poorly Insulated House Warm

Types of Window Insulation

There are a few ways to insulate windows for summer. You can use foam insulation, spray foam insulation, or cellulose insulation. This article focuses on cellulose insulation and the different types of cellulose insulation that are available. 

Cellulose insulation, often made from recycled paper like newspapers, is an eco-friendly way to insulate your windows. This method is particularly effective in blocking the sun’s heat from entering your home, keeping your house cool and comfortable during summer.

The different types of cellulose insulation that are available include: 

  • Cellulose insulation panels; 
  • Cellulose insulation blankets; 
  • Cellulose insulation batts; 
  • Cellulose insulation mats;
  • Cellulose insulation sheets 
  • Cellulose insulation rolls 
  • Cellulose insulation rolls with adhesive 
  • Cellulose insulation sheets with adhesive

How To Insulate Windows For Summer

The best way to insulate windows for summer can help you stay cool during the hot weather. You can use a variety of materials to insulate your windows. 

These include window insulation film, foam, and even a refrigerator. The most important thing is to find a material that is easy to work with. If you can work with the material well, it will be much easier to attach it to your windows.

Using window film is an excellent strategy to reflect heat and enhance the efficiency of your windows. These films, especially laminated plastic ones, are designed to reflect a significant portion of the sun’s heat, preventing it from entering your home and helping maintain cool air indoors.

An added benefit is that it blocks UV rays that can damage and fade furniture, rugs, and artwork. This is great if your home is in a warm climate and you use your air conditioner for long periods of time.

You can also insulate the window with bubble wrap. Bubble wrap isn’t just for shipping and popping. One of the best ways to insulate windows for summer is with a plastic film with multiple air pockets.

Medium to large foam can use any type of bubble wrap. Clean the window panels and cut the sheets to fit them. Spray a clean window with water and press the bubble wrap into place. You can easily remove it later.

The Cheap Way To Insulate Windows

For those seeking a budget-friendly solution to insulate windows for summer, there are simple yet effective methods. These can include DIY solutions that prevent heat gains and keep your home comfortably cool without a significant investment.

You can use a large, open bag of ice to keep the window cool. You can also use a small, closed bag of ice to keep the window cool when it’s not in use. This is an easy and cheap way to insulate your windows for the summer.

Moreover, investing in energy-efficient windows can be a long-term solution for summer insulation. These windows are designed to minimize heat transfer, keeping your home cooler in the summer and warmer in the winter. While the initial investment might be higher, the reduction in energy bills and increased comfort can make it a worthwhile choice.


It is important to insulate your windows for the summer. If you don’t insulate them, your home will be incredibly hot and uncomfortable. There are a couple of ways that you can insulate your windows. You can use foam to insulate the windows, and you can also use spray foam. 

Read also: How to Cut Rigid Foam Insulation

The spray foam is a little more expensive, but it will also last a lot longer. Another option is to use air conditioners. If you are looking to save money, then using your air conditioner is a great option. However, this may not be the right option if you live in a very hot climate.

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Insulation Line, managed by Michael Warman, offers valuable insights and practical tips on insulation. With over 15 years of experience in the industry, Michael provides detailed information on selecting insulation materials, installation methods, and enhancing energy efficiency