Suggestions for Covering Glass Block Windows

Glass block windows are elegant and practical. The glass blocks provide opaque lighting and some privacy, but often shadows and movement can be seen through the glass. Coverings for glass block windows offset these disadvantages. They cover windows for privacy and uncover them to restore light. Glass block window coverings range from simple do-it-yourself projects to custom installations.

DIY Blackout Coverings

Prevent light from entering windows with blackout fabric. This material is available at fabric and drapery stores. These fabrics block light with foam or Mylar bonded to a fabric surface. Blackout fabrics are sold in many colors and textures. A blackout panel cut or hemmed to cover the window is easily attached to the glass block window or adjacent wall with industrial self-stick hook and loop fasteners. The fasteners allow the fabric to block light or be open as needed.

DIY Theme Coverings

Choose decorative vinyl wall banners and door panels for fast and inexpensive window coverings. Available at party and discount stores, these lightweight coverings come in many themes and designs. Some are party specific, such as birthday, and others are beach scenes or landscapes. Attach them directly to the glass block windows with removable tape. Tape several together as a mural for larger window areas.

DIY Film Coverings

Apply removable sun tint film to the glass block window. The film provides privacy and reduces sunlight filtering through the glass. The film is available in various colors and shades from home centers and fabric stores. It is cut with scissors and held in place by static, and it can be applied and removed as needed. Do not use tint film held in place by adhesive since it leaves a residue when removed. For a decorative effect, apply holiday or theme window clings to the film.

Traditional Coverings

Use traditional window coverings for glass block windows. Curtains or roll screens are available at department and home improvement stores. These window treatments can be installed over most glass block windows just as they are on regular windows. Lightweight curtain rods are DIY installed and hold curtains to cover just the window or hang to the floor for a drapery effect. Curtains are pulled to the side and tied when more light is desired.

Custom Coverings

Home improvement centers and interior design stores offer custom-fit draperies and blinds. Custom shutters are another option for covering glass block windows. Many stores also install these coverings. Professional installation is recommended when the coverings will hang from the ceiling or be remotely operated.

Caution

Covering glass block windows permanently is usually not practical because the windows provide light and ventilation. Many glass block windows have ventilation panes that must be accessible. Heavy and permanent covers can cause glass blocks to sweat. When the moisture collects around the window or wall, it often causes mold and can result in paint damage and wood rot. Be sure adequate ventilation prevents damage and retains the benefits of the glass block window.

Resources

• Read this Article in Spanish
• Better Homes & Gardens Window Treatments