The right lining can help to protect your window treatment investment. This video shows the different types of linings available, discussing thermal linings, interlinings, and traditional linings. Learn how linings protect the drapery curtain face fabrics from excessive sun damage. Linings not only protects the curtain panel fabrics from sun damage, but they also make draperies hang better and keep the fabric colors from fading. When drapery panels or drapes are lined, the window treatment fabrics colors are enhanced and the drapery fabric looks lusher and more expensive. Linings not only protect draperies and window treatments, they also help conserve a home’s heat and save energy. Linings come in different weights and fabric fibers–from cotton to polyester to rayon. They also come in different polishes, from traditional to sateen.