How to Make Curtains to Block Heat


Insulated curtains have more than one job. They can block heat from coming into your home from the outside in the summer; they can keep the heat in your home in the winter and they can also block the light if you want to keep your room dark. To make these curtains you must use a special insulated fabric, which will reflect the heat and the light from the back side of the curtain. For best results when making your heat-blocking curtains, choose a darker colored fabric.

Things You'll Need

  • Measuring tape
  • Drapery fabric
  • Drapery insulation
  • Scissors
  • Pins
  • Sewing machine
  • Thread
  • Iron
  • Chalk
  • Measure your windows just as you would when making regular full-length curtains. Measure your desired length of the curtains and add 6 inches. Measure the width of the window and double it.

  • Cut two drapery panels for each window using the measurements as a guide. Cut the insulation fabric to the same measurements as well.

  • Lay out your curtain fabric, with the right side up, on a table or floor to give you enough space. Lay the insulation panel on top with the right side facing down. Pin the top and side edges to hold the fabric in place.

  • Thread your sewing machine with a coordinating thread and sew around the top and the sides of the heat-blocking curtain. Repeat for the other panel.

  • Turn the curtain right side out and iron the seams.

  • Fold under the raw edges at the bottom of the panel so that they are inside the curtain. Pin the fabric to hold it and then sew to secure the hem.

  • Form the rod pocket casing by folding down the top edge of the curtain 5 inches. Pin in place. Sew straight across the bottom edge to hold the fabric in place.

  • Use the chalk and the measuring tape to mark and measure 2 inches from the top. Sew along the chalk mark top to form the rod pocket for your curtains.

Tips & Warnings

  • Wash and iron all your fabrics before you cut anything. Some fabrics will shrink and others will not. This will prevent your fabrics from puckering up after you wash the completed curtains.
  • Make simple tiebacks for your curtains for when blocking the heat is not necessary. Cut two strips of cloth measuring 4 inches wide by half the width of your window. Sew along the side seam, turn the fabric right side out, sew hems on the ends and add buttonholes.

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