This style of framed screen is typically done by professional installers, because of the specialized frames and tools required. A recent advancement is frame-less shade screens, which allows a "DIY-er" to install their own exterior shades. Solar shade screens can also be installed at the end of awnings to provide horizontal shade during early morning or late afternoon sun positions.
Some aluminum awnings are designed to be folded down and fastened to protect windows in case of storms such as hurricanes.
Shade screens utilize acrylic canvas or a mesh fabric, which allows some view-through while blocking the sun's rays. The roller at the top may be hand-cranked or motorized. The fabric is gravity-fed, with a weighted bottom rail pulling the fabric down between guide rails or guy wires. Exterior shades are much more effective at blocking heat than interior shades, since they block the heat before it enters the glass.
Lateral arm awnings are also known as folding arm deck or patio awnings, as they can extend / project as far as 16 feet (4.88 m) and be as wide as 52 feet (15.85 m) or more - thus covering a large outdoor space.