Best Curtains to Keep Heat Out: Stay Cool and Save Energy all Summer

Experience the ultimate in comfort and energy efficiency with our carefully curated selection of the best curtains to keep heat out. In the sweltering heat of summer or the chilling cold of winter, these curtains offer a stylish and effective solution to maintain a comfortable indoor temperature while reducing energy costs. Our comprehensive reviews and buying guide will help you choose the perfect curtains that provide insulation, block out sunlight, and keep your home cool during hot days. Find the ideal combination of functionality and design to enhance your living space while saving on energy bills.

Get ready for our reviews on the best curtains to keep heat out, but first, here are some related Amazon products to check out:

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Understanding the Role of Heat-Blocking Curtains

During the hot summer months, keeping heat out of your home is essential for maintaining a comfortable indoor environment and reducing the need for excessive air conditioning. One effective way to achieve this is by using curtains designed specifically to block heat from entering through windows. These curtains are typically made from thick, insulating fabrics that trap heat outside while keeping your interiors cool.

Thermal or blackout curtains are popular choices for blocking heat as they are specifically designed to prevent sunlight and heat from penetrating through the window. These curtains feature multiple layers that provide excellent insulation and UV protection, leading to a significant reduction in heat transfer. Additionally, thermal curtains can help retain warmth during the winter months, making them a versatile and energy-efficient window treatment option.

When selecting curtains to keep heat out, consider the color as well. Light-colored curtains are better at reflecting sunlight and heat, while dark-colored curtains can absorb heat and may not be as effective in keeping interiors cool. It is also important to ensure a proper fit for the curtains to maximize their heat-blocking capabilities by covering the entire window area and preventing any gaps where heat can enter.

In conclusion, investing in curtains specifically designed to block heat can help you stay comfortable during hot weather and reduce energy costs associated with cooling your home. By using thermal or blackout curtains in conjunction with other energy-saving strategies, you can create a more sustainable and comfortable living space year-round.

Best Curtains To Keep Heat Out

01. Blackout Curtains

Experience complete darkness and sound sleep with these premium blackout curtains. The thick, high-quality fabric effectively blocks out sunlight, streetlights, and any unwanted outdoor noise, creating a tranquil environment perfect for a restful night’s sleep. The elegant design and multiple color options make these curtains a stylish addition to any room while offering practical benefits.

These blackout curtains are a game-changer for those who value quality rest and privacy. Easy to install and maintain, they are a cost-effective solution for improving the ambiance and comfort of your living space. Say goodbye to disruptive light and noise with these blackout curtains that elevate both your decor and your well-being.


  • Blocks light and UV rays for better sleep
  • Reduces outside noise for a quieter environment
  • Helps to regulate room temperature
  • Enhances privacy in your living space
  • Protects furniture and floors from sun damage
  • Improves energy efficiency by retaining heat in winter and cool air in summer.


  • May restrict airflow and ventilation in a room.
  • Can be heavy and difficult to hang or manage.

02. Thermal Insulated Curtains

These thermal insulated curtains have truly transformed our home during both hot summers and chilly winters. The high-quality material effectively keeps the heat out in summer and locks it in during winter, creating a comfortable environment all year round. The curtains not only block out unwanted light but also reduce noise, promoting a peaceful ambiance in our living space.

Additionally, the elegant design and variety of colors available allowed us to find the perfect match for our decor. The easy installation process and durable construction make these curtains a practical and stylish addition to any home, providing both functionality and aesthetic appeal.


  • Energy efficiency
  • Light and noise filtration
  • Improved home insulation
  • Enhanced privacy
  • Stylish design options


  • Limited design and style options
  • Potential for reduced natural light in rooms

03. Sun Zero Easton Blackout Energy Efficient Grommet Curtain Panel

Perfect for those seeking both style and functionality, the Sun Zero Easton Blackout Curtain Panel is a game-changer in any living space. Its energy-efficient design helps to regulate room temperature, while its blackout feature blocks out harsh sunlight and prying eyes. The grommet top adds a modern touch and makes installation a breeze.

Crafted with high-quality fabric, this curtain panel is not only durable but also easy to care for. Available in a sleek black color, it effortlessly complements various decor styles. Transform your room into a cozy and private sanctuary with the Sun Zero Easton Blackout Curtain Panel.


  • Blocks out light and UV rays
  • Reduces outside noise
  • Energy efficient
  • Enhances privacy
  • Stylish grommet design


  • Limited color options available.
  • May require ironing to remove wrinkles.
  • Some users find the fabric thickness too heavy.

04. Deconovo Room Darkening Thermal Insulated Blackout Grommet Window Curtain Panel

Featuring a sleek and modern design, the Deconovo Room Darkening Curtain Panel is a game-changer in any room. The thermal insulation properties enhance energy efficiency while the blackout feature ensures a peaceful and undisturbed atmosphere for a restful night’s sleep.

With easy-to-install grommets for swift assembly, this curtain panel is a practical and stylish addition to any home decor. The high-quality material not only blocks out light efficiently but also adds a touch of elegance to space. Perfect for creating a cozy ambiance in bedrooms, living rooms, or home offices.


  • Blocks sunlight and UV rays
  • Reduces outside noise
  • Provides insulation to regulate room temperature
  • Enhances privacy
  • Easy to install with grommet design
  • Available in various colors and sizes


  • Limited color options available.
  • May need additional curtain rods for proper installation.

05. Eclipse Fresno Thermal Insulated Single Panel Rod Pocket Darkening Curtains

Designed for both style and functionality, the Eclipse Fresno Thermal Insulated Curtain is a must-have for any room. Its single panel design with a convenient rod pocket makes installation a breeze. The thermal insulation feature ensures your space stays cozy while also reducing outside noise for a peaceful environment.

Crafted with high-quality darkening fabric, these curtains are perfect for creating a sanctuary of darkness for a good night’s sleep or movie-watching. The Fresno curtains offer a sleek look that complements various decor styles, adding a touch of elegance to any room. Overall, a fantastic choice for those seeking both style and practicality in their window treatments.


  • Energy-efficient
  • Blocks out light
  • Reduces noise
  • Helps maintain room temperature
  • Easy to install


  • Limited color options available.
  • Can be prone to shrinking if not washed properly.

Understanding the Importance of Using Curtains to Block Heat

During hot summer months or in regions with high temperatures, people often seek ways to keep their homes cool and comfortable. One effective method is to purchase curtains specifically designed to keep heat out. These curtains are made from specialized materials that help block sunlight and insulate the room, preventing heat from entering through windows.

The main reason people choose to invest in curtains to keep heat out is to regulate the indoor temperature and create a more pleasant living environment. By blocking out sunlight and heat, these curtains help maintain cooler temperatures inside the house, reducing the reliance on air conditioning and lowering energy costs.

The best curtains to keep heat out are typically made of thick, insulating fabrics that have a high thermal performance. These curtains often feature a light-blocking lining that not only prevents heat transfer but also helps with maintaining privacy and reducing outside noise. Additionally, some curtains come with added features such as thermal backing or reflective coatings to enhance their heat-blocking properties.

In conclusion, purchasing curtains designed to keep heat out is a practical and cost-effective solution for maintaining a comfortable indoor temperature during hot weather. Investing in the best curtains to keep heat out can help reduce energy consumption, improve home comfort, and create a more sustainable living space.

Choosing the Right Curtains for Optimal Heat Insulation

Selecting the perfect curtains for optimal heat insulation involves taking into account factors such as fabric thickness, color, and lining. By carefully considering these key elements, you can effectively block out heat and sunlight to maintain a cooler and more comfortable living environment.

Material Of The Curtain

Choosing the right material for curtains plays a crucial role in keeping heat out of a room. Certain fabrics like heavy wool or velvet can trap heat, making the room warmer, while lighter materials like sheer or linen allow heat to escape. Opting for thick, insulating fabrics such as blackout curtains or thermal drapes can effectively prevent heat from entering a room during hot weather. Additionally, specific materials may offer UV protection, further reducing heat and maintaining a comfortable temperature indoors. Considering the material of the curtain ensures that the window treatment effectively helps in blocking out heat and maintaining a cooler environment.

Color Of The Curtain

Choosing the right color of curtains can play a crucial role in keeping heat out of your space. Dark-colored curtains absorb more heat from the sun, making the room warmer. On the other hand, light-colored curtains reflect sunlight, preventing heat from entering the room and maintaining a cooler temperature. By opting for lighter shades such as white, beige, or pastels, you can effectively reduce the amount of heat that penetrates through the windows, helping to create a more comfortable and energy-efficient living environment during hot weather.

Density Of The Fabric

Choosing curtains with a dense fabric is essential for keeping heat out because denser fabrics provide better insulation. The tightly woven fibers in a dense fabric act as a barrier, preventing heat from entering or escaping through the windows. This insulation property helps in maintaining a consistent room temperature by blocking out sunlight and heat waves during hot weather. Opting for curtains with a higher density fabric can significantly reduce the amount of heat entering the room, making it more comfortable and energy-efficient. Additionally, dense fabrics also offer better privacy and light control, enhancing the overall functionality of the curtains.

Type Of Lining

Choosing the right type of lining for curtains plays a crucial role in keeping heat out of a room. A thermal lining, for instance, can effectively insulate the windows and prevent heat from escaping during colder months. On the other hand, a reflective lining can help block the sun’s heat during hot weather, keeping the room cool and comfortable. By considering the type of lining for curtains, one can significantly enhance the overall energy efficiency of their home, reducing the need for heating or cooling systems and ultimately saving on utility bills.

Proper Fit And Installation

Proper fit and installation of curtains play a crucial role in maintaining a barrier against heat transfer. Ill-fitting curtains can leave gaps where heat can easily escape or enter a room, reducing their effectiveness in insulation. By ensuring a snug fit and proper installation, curtains can provide a continuous barrier that helps to keep indoor temperatures stable and prevent heat loss or gain. This is particularly important in maintaining a comfortable indoor environment and reducing energy costs associated with heating or cooling. Investing time in considering the fit and installation of curtains can significantly enhance their thermal efficiency and overall performance in keeping heat out.

Energy-Efficient Fabric Selection

When selecting curtains to keep heat out, choosing the right energy-efficient fabric is crucial. Opt for materials like thermal, blackout, or room-darkening fabrics that have insulating properties to regulate temperature effectively. These fabrics act as a barrier to prevent heat transfer, keeping your home cooler during hot weather and reducing the strain on your air conditioning system.

Thermal curtains are made of multiple layers that trap air between them, creating a buffer against heat exchange through windows. These curtains help to maintain a comfortable temperature in your living space by blocking out sunlight and UV rays. Additionally, blackout curtains are designed to block light and heat, providing excellent insulation to keep your room cool and dark, even during the sunniest days.

Room-darkening fabrics offer a middle ground between sheer and blackout curtains, allowing some light to filter through while still providing thermal insulation. Look for curtains with a high R-value, which indicates their ability to resist heat flow. By choosing energy-efficient fabric for your curtains, you can significantly reduce your energy costs and create a more comfortable environment in your home.

Installation Tips For Maximum Insulation

When installing curtains for maximum insulation, it’s crucial to ensure a tight fit to prevent any gaps that may let heat escape. Start by measuring your windows accurately to determine the right curtain size. Opt for floor-length curtains and consider adding a few inches to both the width and length for a fuller, more insulating effect.

Use a double curtain rod to layer your curtains, combining a heavier, thermal-insulated curtain with a lighter, decorative one. This technique creates an air pocket between the layers, enhancing insulation. Make sure to place the rods close to the wall and extend them beyond the window frame to minimize heat loss through the sides.

Install curtain pelmets or valances above your curtain rods to cover the gap between the curtain and the ceiling. This additional barrier traps heat and prevents it from rising and escaping the room. For extra insulation, consider using magnetic curtain strips or attaching adhesive Velcro along the edges to seal any gaps between the curtain and the wall effectively.

Lastly, regularly check your curtains for any signs of wear and tear, as damaged or ill-fitted curtains can compromise their insulating properties. By following these installation tips, you can ensure that your curtains provide maximum heat insulation, keeping your space cool and comfortable during hot days.

Additional Accessories For Thermal Efficiency

In your quest to maximize thermal efficiency in your living space, consider incorporating additional accessories that complement your choice of curtains. One such accessory is a thermal liner, which can be attached to the back of your curtains to provide an extra layer of insulation. These liners are often made from materials like felt or flannel and can significantly boost the heat-blocking capabilities of your curtains.

Another useful accessory is a draft stopper, which can be placed along the bottom of your doors or windows to prevent heat from escaping and cold air from seeping in. Draft stoppers come in various designs and materials, such as foam or fabric, and are an affordable way to enhance the overall insulation of your home.

For a more high-tech solution, consider investing in smart home devices like programmable thermostats or automated blinds. These gadgets can help you regulate the temperature in your home more efficiently by adjusting settings based on your preferences or utilizing sensors to respond to external temperature changes.

Lastly, don’t overlook the importance of proper installation and maintenance of your curtains and accessories. Ensure that they are fitted correctly to minimize gaps where heat could escape, and regularly clean and inspect them to uphold their thermal efficiency over time. By combining quality curtains with the right accessories and practices, you can create a cozy and energy-efficient environment in your home.

Frequently Asked Questions

What Features Should I Look For In Curtains To Effectively Keep Heat Out?

To effectively keep heat out, look for curtains with thermal lining, which can act as a barrier to block out heat. Opt for thicker materials like velvet, suede, or tweed as they provide better insulation. Additionally, choose curtains with a tight weave to minimize heat transfer. Installing curtains with a layered design, such as a double curtain rod with sheer curtains underneath, can also help to keep heat out while still allowing natural light to filter through.

Are There Specific Curtain Materials That Are Better At Insulating Against Heat?

Yes, certain curtain materials are better at insulating against heat. Fabrics like velvet, suede, and thermal-lined curtains are excellent choices for insulating against heat as they are thick and heavy, providing a barrier to prevent heat transfer. Additionally, materials with a tight weave like wool and cotton can also help keep out heat by blocking sunlight and trapping air to create an insulating effect. Choosing curtains made from these materials can help regulate the temperature in your home and reduce energy costs.

How Do Blackout Curtains Help In Preventing Heat From Entering A Room?

Blackout curtains help prevent heat from entering a room by blocking sunlight and insulating the space. The thick, opaque fabric of blackout curtains limits the amount of light that can pass through, reducing the heat generated by direct sunlight. Additionally, blackout curtains provide an extra layer of insulation, helping to trap cool air inside and prevent warm air from entering, thereby maintaining a comfortable temperature in the room.

Which Color Of Curtains Is Best For Blocking Out Heat From The Sun?

Dark-colored curtains, such as navy blue or charcoal gray, are best for blocking out heat from the sun. Dark colors absorb more sunlight and heat, preventing it from entering the room. Additionally, curtains with a thick, opaque fabric will provide better insulation and further block out the heat. Opting for blackout curtains in a dark color will help to create a cooler environment in the room by keeping the harsh sunlight at bay and maintaining a comfortable temperature.

Can Installing Thermal Curtains Help In Reducing Heat Transfer Through Windows?

Yes, installing thermal curtains can help in reducing heat transfer through windows. Thermal curtains are specifically designed to provide insulation by trapping heat inside during winter and keeping heat out during summer. The thick fabric and special lining of thermal curtains create a barrier that helps to minimize heat transfer through windows, thereby improving energy efficiency and maintaining a more consistent indoor temperature.

The Bottom Line

After evaluating various options, it is evident that choosing the right curtains can significantly impact the temperature regulation of your living space. Opting for the best curtains to keep heat out can enhance the comfort of your home while also contributing to energy savings. By understanding the features and benefits of different curtain types, you can make an informed decision that aligns with your needs. Invest in quality curtains that effectively block the heat to create a cooler and more pleasant environment, ultimately improving your overall living experience.

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