Window shutter
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A window shutter is a solid and stable window covering usually consisting of a frame of vertical stiles and horizontal rails (top, center and bottom). Set within this frame can be louvers (both operable or fixed), solid panels, fabric, glass and most any other item that can be mounted within a frame. Shutters may be employed for a variety of reasons, including controlling the amount of sunlight that enters a room, to provide privacy, to protect against weather and to enhance the aesthetics of a building. Depending on the application, and the construction of the window frame, shutters can be mounted to fit within the opening or to overlap the opening. The term window shutter includes both interior shutters, used on the inside of a house or building, and exterior shutters, used on the outside of a structure. On some styles of buildings it is common to have shutters to cover the doors as well as the windows.
[edit] Interior shutters
Interior shutters usually hinge on either side of a window opening, and swing inwards to allow access to the window or to allow light to enter a room. Operable louvered shutters have louvers, or slats, that rotate open and closed to control light, visibility and airflow. Shutters that have operable louvers are described using different terms such as traditional shutters, california shutters, or plantation shutters which typically refers to the size of the louver blade. Other interior shutters use stationary louvers that do not rotate, solid raised panels, fabric inserts or tinted glass. Shutters can be configured in a single tier unit that has one shutter top to bottom of a window opening. Multiple tier units feature separate shutters on each tier which allows the top shutters to be opened independently from the bottom shutters. Café type shutters refer to shutters that only cover the lower portion of a window.
Full height shutters can be made with a horizontal divider rail which separates the upper and lower portions of the shutter. With operable louvered shutters this gives greater control as the louvers above the divider rail can be operated independently from the louvers below the divider rail. A tilt bar (rod) is used for adjusting louver position and to keep them in a uniform position. Interior shutters can be constructed from numerous woods, which can be painted or stained, and a variety of synthetic materials. Interior shutters that are made to close tolerances are preferable for the best possible fit. When louvers or tilt bar (rod) become damaged, replacement kits for these damaged parts may be ordered online and are easy to install.
[edit] Exterior shutters
Exterior shutters were originally constructed for light control, privacy, and protection from the elements. Functional shutters hinge to either side of a window or at the top and swing closed when necessary and can also be mounted on tracks applied to the face of the building. Fixed and operable louvers shed rain, allow air transfer, filter direct sunlight, protect from small flying debris, and provide privacy. Multi-functional shutters use movable louvers that allows for greater control. Solid panels and board-and-batten shutters are generally used for protection during severe weather . Non-functional shutters are specifically used to enhance the features of a building. Functional shutters have traditionally been constructed from solid woods that have proven to endure outside elements but have also been mass produced in woods less suitable to the outdoors like pine. Finishing wood shutters is recommended for extended life. Composite shutters offer advantages over wood shutters such as resistance to twisting, splitting, and rotting. However, PVC shutters are often hinged with three or more hinges and painted with vinyl safe paint to keep from bowing in the sun and can require additional hardware.
It should be noted that certain hardwoods that are currently used for exterior shutters, specifically Spanish Cedar, Honduran Mahogany and Teak, are resistant to rot, decay and insects and are very stable and more durable than a softer wood like pine would be. Non-functional exterior shutters can be constructed from vinyl, wood, or other synthetic materials. Non-functional shutters simply screw or bolt directly to the building. A recent material to be used for the making of composite functional shutters is fiberglass because it never rots, twists, and is extremely dimensionally stable. Fiberglass is a reinforced plastic unlike vinyl or PVC shutters so it does not warp or sag much like it's unreinforced counterparts. It's strength is comparable to aluminum however it does not suffer from corrosion and electrolysis.
An exterior hurricane shutter or storm shutter is used to protect windows and doors in a building against the effects of high winds, rain, and flying objects during a hurricane, or as security gates over the opening. They can be made of a variety of materials such as fiberglass, aluminium, iron, or wood and can be installed in tracks to be quickly opened and closed with motorized controls. There are also high impact resistant plastics that can be applied to new or existing wood shutters that provide hurricane protection.
