Restricting air circulation around a window is a requirement for maximum energy savings. A close fitting Roman Shade that is mounted inside the window opening will trap dead air against the glass and reduce heat loss or gain by as much as 25%. To maximize energy efficiency, mount shades as close to the glass as possible.
Restricting airflow at the top, bottom and sides of the window treatment is a key to saving energy. Close the top with a cornice or ceiling mount drapery, fitting the bottom close to the sill or floor and sides snugly to the window frame. This will trap dead air, containing heat in summer and cold in winter, cutting heat transfer by 25%. Center overlap stops 10% heat loss. Inside mounted (inside the window frame) treatments should be placed 1” from the glass to maximize energy efficiency.
Just like when you dress yourself for cold weather, layers are the way to go. Even using the best currently available construction technology, your heating dollars are going out the window (sorry). Your best defense is to make use of multiple layers of window coverings.
Whether you want blinds that will coordinate with other elements in your home or you are after light blocking and privacy the Levolor cellular shades can do what other blinds do only much better. The innovation of the Levolor cellular shades provides you with both heating and cooling savings as well and offers you a wide range of options to fit your modern lifestyle. You can use one set of blinds for light filtering and light blocking and can have your blinds so that they can be drawn down from the top or up from the bottom.
Cellular shades are very good insulators against the cold (and heat). They are available in a wide range of colors and patterns. You can customize your shade to provide a sheer shade effect or they can be used to black out a home theater.