Folding doors and operable walls allow maximum access and seamless views to the outdoors from the interior of any space. There are a number of options for these types of systems. One type is a Lift and Slide System. These systems can be selected with a ‘barefoot-friendly’ recessed track. Other options include hurricane impact ratings, sliding doors, and steel components to prevent rust in coastal areas. In order to open these systems, the handle is rotated 180 degrees which allows an approximately 3/16” panel to lift. When closed, the gasket holds a complete seal. Another option is a staggered and segmented track. An example of this is a 6-panel bi-parting door with pockets with three panels each goes to the left and the right. It is possible to lock all panels down for security. Still another option is a recessed draining track that helps prevent water from going into the interior space.

Multi-Slide Systems feature a modern design with slim profiles. This design includes the benefits of maximizing views and enhancing modern architecture. Selecting the pocket option allows for a 100% opening and is the best way to achieve a 360 degree view. Using the pocket option, there are less obstructions to the outside view. In addition, this option allows more daylight through the opening.

Folding Door Systems can stack panels to leave up to 90% of the opening clear. These systems now have options that include child-safe and pinch-proof bubble gaskets. Another benefit to folding doors is that doors that are used daily can be integrated into the system. This means that doors like swing, egress, and single/double folding doors can be used without having to operate the entire system. Configurations come in multiple stacking options and the folding door system is fully customizable to swing in or out. One feature, the concealed throw pins on the top and bottom tracks, results in a very secure system. An example of a folding door system is a restaurant that has a 6-panel bi-parting door between the interior and exterior.

Horizontal Sliding Walls may be effective in both residential and commercial settings. Features include state-of-the-art engineering. Doors that are used daily can be integrated into the walls. Other features are no hinges, no side frame, and a trackless system. Horizontal Sliding Walls can stack in non-walkway areas outside the door with guides at the top. Options include a stopper or dustproof mover. An example of this type of sliding wall is an 8-panel system with two areas for parking stacks.

Standard glazing is Cardinal 270 tempered glass. This glass is 1” overall with a silver spacer. Optional glazing include a Low-E Cardinal 366, argon gas, and air-filled glass. Monolithic glass is one large layer of glass glazing. Double-laminated glazing is used in high-rise buildings. The energy The National Fenestration Rating Council (NFRC) provides energy performance ratings for various types of glass.

With low-E coatings, less transmission comes from the outside to the inside of the glass. These coatings work with both warm and cold climates. In warm weather, heat is reflected outdoors. On the other hand, in cold weather, heat is reflected indoors.

Decorative Glass options include a large piece of monolithic, laminated insulated, tinted, and other decorative features. Wood clad may be stain grade douglas fir. Another popular wood is pine which imparts a warm, rich aspect to the glazing. Single tone powder coat is a standard feature. Other finishes may include dark bronze, black, anodized, white, and clear.

Aluminum Frame material has a natural protective layer of oxide on its surface that helps prevent corrosion. The strength is also greater than other materials. Because of the low melting point, this material is considered sustainable as it can be melted down and reused for another purpose. Another unique aspect of aluminum is that it is the third most abundant element in the world.

Aluminum Frame with Wood Clad material has an aluminum frame with a wood clad option on the interior. Using solid wood gives this treatment a warm, rich feeling. One option is to specify sustainably harvested wood. This material supports its own weight in longer spans without additional supports. There is also the benefit of integrated acoustical properties that helps with sound absorption. Multi Lift & Slide systems can be bottom girded with the most weight at the bottom. Contractors should make sure that there is enough support in construction. Systems can also be installed as top running.

French doors are another option for sliding doors with tracks that swing in or out. Also available are American with Disability Act (ADA) compliant tracks. Typical threshold limitations are ½” for new construction and ¾” for modified or existing spaces. Swing doors may also incorporate egress hardware. Thermal barrier is still another alternative that reduce transfer of heat and cold into conditioned spaces.

Folding doors and operable walls enhance the connection between indoor and outdoor. These assemblies bring in daylighting, view, and natural ventilation. Special features may include additional flexibility, energy performance, and weather resistance.