- Foam insulation board from your local hardware store 3/4" thick to 1" thick
- duct tape (we used silver to match the back of the foam insulation)
- a curtain rod
- hot glue
- straight pins
- quilting batting
Measure your window with a 3-4 inch overhang on each side. Then determine the height from top of cornice to bottom as you desire. The cornices in the kids rooms were about 2 feet in height and the cornice in the basement room reveal was only 1 foot in height. If you have a blind in the window you probably want to make it a little larger to cover the hardware. Also, the higher you hang the cornice the larger the room feels.
Lay the fabric on your work surface, pretty side down, then layer the batting and then the foam board. Our fabric wasn't long enough so we had to sew extra pieces of fabric to each side to make it long enough... The seams hit the edges perfectly.
Next grab your duct tape again and start on the short sides... Pull fabric over and tape all edges down. Go to the other 3 sides and repeat.
Hot glue all along top edge to attach the curtain rod. It holds it perfectly!