Updated at: 12-09-2022 - By: Sienna Lewis

To keep a room’s temperature stable without having to adjust the thermostat, thermal drapes are an excellent option. The space will stay cooler in the summer and warmer in the winter due to the lack of exposure to chilly air.

Is there a scientific explanation for how thermal curtains function? In the lining, the secret lies in the details. In order to keep a room’s temperature stable, this curtain is lined with a special fabric that shuts off the window. For thermal curtains, a number of insulation materials can be utilized. Some have a rubbery feel to them. These can be washed and reused many times over. However, they aren’t your only choice. Insulation fabrics come in a variety of weights. You have a choice between light and substantial insulation, depending on how much climate control you require. It’s possible to have insulation benefits in a more visually pleasing cloth. Even the color of the top, ornamental fabric can be enhanced by a variety of options.

Thermal curtains can help save money on energy expenditures by creating a layering effect. When it comes to thermal curtains, the outer fabric layer is just decorative, while the inside layer serves a practical purpose. Almost any medium to heavyweight fabric will do for this layer’s front. As well as improving the thermal function, this layer will enhance its visual appeal. Thermal curtains that are composed of a lightweight fabric that is too sheer will not sufficiently conceal the functional lining. When it comes to thermal curtains, that is the primary constraint in the fabric options.

4 Simple Steps on How to Make Thermal Lined Curtains - Krostrade

When it comes to making thermal draperies, the process is very straightforward. Sewing and measuring are two skills that are necessary. Creating your own thermal curtains at home might save you a lot of money.

  1. When constructing thermal curtains for a window, measure the height and width of the window. To get the finest effect, make sure your curtains go all the way to the floor. In addition, give the fabric an inch or two around the edges.
  2. Cut the insulation and the cloth in accordance with Step 1’s instructions for cutting the materials.
  3. Sewing is made easier by pinning the cloth to the insulation (with the exterior surfaces facing in).
  4. Sew the insulating material to the fabric with a sewing machine. Turn the garment inside out and sew three of the edges together to reveal the exterior. Add an inch or two of leeway to the unstitched edge of the curtain and stitch it shut.
  5. Grommets can be attached to the top of the curtain by drilling holes about 3/8 of an inch from the edge. Hole spacing should be identical across the board. Grommets should be hammered into position.
  6. When hemming a Velcro-adhered curtain, sew Velcro strips along the edges. Position and affix the other side of the Velcro on the walls in the corresponding position of the Velcro on the curtains. Insulation is improved as a result of this.
  7. Hang the curtains after installing the curtain rod..


  • Curtains made with this material
  • Curtains with insulating material
  • Thread, pins, scissors, and a tape measure are all you need for sewing.
  • There is a sewing machine in the room
  • Set of grommet punches
  • Velcro
  • Dowel rod or curtain rod
  • Dowel brackets or brackets for curtain rods
  • Shower curtain rings or curtain rings


Winter heat escapes through north-facing windows in the Northern Hemisphere, but summer heat escapes through south-facing windows, necessitating additional insulation on these windows. Make sure you select a durable cloth that won’t stretch or tear easily. An excellent choice is twill. If possible, try to use recycled or sustainable materials to reduce your impact on the environment.

Heritage Cranbourne Made to Measure Curtains | Dunelm


Dry-cleaning lined curtains is recommended since washing them can cause the lining to shrink more than the cloth.

Steps on How to Make Thermal Lined Curtains

If you want your curtains to be a different color than the lining fabric, I recommend buying two yards of material for each yard needed.

If you want your curtains to be a different color than the lining fabric, I recommend buying two yards of material for each yard needed.

When purchasing curtain fabric, I recommend purchasing two yards for each yard of lining fabric.

Tip #4: Sew the lining fabric together like you did with your curtains as a final step.

Next, hem all four bottom edges of both fabrics, then position one piece rightside up on top of the other (line on inside) and sew all around the perimeter using a serge stitch or zigzag stitch to hide any visible sewing.

What are Thermal Lined Curtains?

Cold air is kept out and warm air is kept in with thermally lined drapes. As a bonus, they can help keep your house warm all year round, but especially in the winter when it’s so cold outside!

Make your own thermal lined window drapes with just two pieces of cloth and a sewing machine; no specialized knowledge or equipment is required.

How to Care for Thermal Lined Curtains?

Use a cool wash cycle and hang them to dry, just like you would with conventional curtains. The sun or a medium-heat iron can help stretch them if they shrink, which is common with thermally coated materials. You should wash the lining by hand in cold water and hang it to dry.

Should you Iron Thermal Curtains?

Yes! In order to keep them around for a long time. Wrinkles can be removed and the lining strengthened by ironing.

Should I use Detergent to Wash Thermal Lined Curtains?

Soap and detergent can be used to clean the linings of your curtains, but be careful not to overdo it.

How do I Hang my Thermal Lined Curtains?

At least two inches wider than the curtain’s width, thermal-lined curtains should be hung on a pole. To assist keep out cold drafts, place the liner so that it is in direct contact with the wall.

What kind of Hardware do you Need for Thermal Lined Curtains?

A rod is the first item you’ll need. Additionally, you’ll need a cordless drill, screws or nails, and curtain rings or hooks for the top of the curtains.

What is the Thermal Lining?

Almost any material can be used to create a thermal liner. Even so, it’s usually made of cotton or polyester and quilted on both sides, making it an effective insulator.

How do you know how much thermal lining to buy?

Add a seam allowance of half an inch to the window width measurement.

What are Some Things to Consider When Buying Thermal Lined Curtains?

Before you buy new curtains, there are a few things you should bear in mind. Consider the temperature where they will be used most, the amount of sunlight and light that enters the space, and the style that best complements your home before making a purchase.

Should you dry Your Thermal Lined Curtain by Laying Flat or Hanging?

Hanging is the preferred method of drying, however it can also be done flat.

How Long Should you Leave Your Thermal Lined Curtains in the sun?

After a long day in the sun, bring them back inside so that they can reabsorb the sun’s heat and warmth. Good curtains can help keep a room warm for the whole 24 hours it takes for the sun to heat it.

FAQs About Thermal Insulated Curtains | Overstock.com

Can I Dye my Thermal Lined Cotton?

Your thermally lined curtains can be dyed.

What Type of Things Should I Avoid When Washing my Thermal Cotton?

You should use a mild detergent with a low concentration of bleaches, if at all possible.