Sheerweave, sunscreen and sunshades are often used interchangeably. Sheerweave and sunscreen refer to fabrics that are woven together so you are able to see through them during the day. Sunshades are rollershades that use the sheerweave or sunscreen fabrics. These fabrics offer privacy during the day (if people are trying to look in) and allow the owner to see out. At night, however, when light conditions reverse, there is no privacy. The owner cannot see out, but anyone outside can see into the space.