Blackout roller shades designed for home use operate in the normal way and do not interfere with shades already in place. “Hold-down” brackets keep the drawn shade tightly pressed against the sides and sill of the window frame, preventing light from seeping outdoors. Made of heavy, washable, opaque material, the shades are available in 36-by-84 inch size, 42-by-92 and 42-by-96.