The Use of Awnings
on Historic Buildings
Repair, Replacement & New Design
Awnings in the 20th Century
Scissor arm awnings have a pair of vertical, hinged arms on either side of the assembly supporting the front bar. To unfurl the awning, the roller is cranked and the arms extend outward pulling the cover away from the roller. Photo: NPS files.
Scissor arm awnings have a pair of vertical, hinged arms on either side of the assembly supporting the front bar. To unfurl the awning, the roller is cranked and the arms extend outward pulling the cover away from the roller. Photo: NPS files.
Awning development during the early twentieth century focused on improving operability. Variations in roller awnings addressed the need to provide an increasingly customized product that accomodated a wide range of storefront configurations and styles.
New folding-arm awnings appeared that operated either vertically or horizontally supplementing the fixed-arm awnings developed in the latter 19th century. Vertical folding arms were made up of smaller hinged arms that crossed like scissors. Operated by gravity the arms extended outward pulling the covering off the roller. Like a fixed-arm awning, the pitch of a scissors-type awning varied depending on whether it was fully or only partially extended.
Lateral-arm awnings were preferred on long elevations, especially those with sheet glass (where vertical arms could not be fastened to the building fa�ade). When lateral arm awnings were installed across a broad storefront or porch, manufacturers recommended spacing the arms at approximately eight foot intervals. Photo: NPS files.
Lateral-arm awnings were preferred on long elevations, especially those with sheet glass (where vertical arms could not be fastened to the building fa�ade). When lateral arm awnings were installed across a broad storefront or porch, manufacturers recommended spacing the arms at approximately eight foot intervals. Photo: NPS files.
Somewhat different was the "lateral arm awning" a horizontally operating awning that worked like a human elbow with the spring action in the arms pushing outward toward the street, unfurling the cover from the roller and maintaining tension. Lateral arm awnings featured a shallow drop that remained relatively constant regardless of how far the arms were extended Scissor arm awnings have a pair of vertical, hinged arms on either side of the assembly supporting the front bar. To unfurl the awning, the roller is cranked and the arms extend outward pulling the cover away from the roller. Operable awnings, whether fixed arm, scissors arm, or lateral arm, rapidly gained popularity as customers came to appreciate the flexibility, concealed appearance, and longer lifespan made possible by roller units.
New Coverings. Slower to change was the fabric used to cover awnings. Canvas duck remained the common awning fabric during the first half of the twentieth century. However, its tendency to stretch and fade, and its susceptability to mildew, and flammable materials like cigarettes and matches motivated the awning industry to search for alternatives. Shortly after World War II, a vinyl plastic coating that increased fade and water resistance was first applied to the canvas. By the 1960s, vinyl resins, acrylic fibers and polyester materials were all being used to provide a longer-lasting awning cover. Ironically, just when these innovations promised more durable awnings, the fabric awning industry felt the debilitating impact of changing architectural fashion, the widespread adoption of air conditioning, and the increasing availability of aluminum awnings.
Modernism dominated commercial architecture during the postwar era. The style's signature form-austere steel, glass, and concrete boxes-had little use for fabric awnings. Colorful awnings seemed old-fashioned, an unwanted distraction from the smooth lines of the machine aesthetic. The preference, instead, was for perforated structural screens or brises-soleil (French: "breaks the sun") that integrated shading functions with new building forms. It was assumed that new buildings had no need for awnings. Widely available for the first time, mechanical air conditioning threatened to make the awning an unnecessary vestige of an earlier era. Awning companies fought back with arguments that traditional shading systems could reduce the required size and investment in air conditioning systems. Though canvas awnings continued to be used on contemporary buildings, new types were often selected to do the job, aluminum and fiberglass awnings.
Widely available by the 1950s, aluminum awnings were touted as longer-lasting and lower-maintenance than traditional awnings. Though used on small-scale commercial structures, they were especially popular with homeowners. Aluminum awnings were made with slats called "pans" arranged horizontally or vertically. For variety and to match the building to which they were applied, different colored slats could be arranged to create stripes or other decorative patterns. While aluminum awnings were usually fixed, in the 1960s several operable roller awnings were developed, including one with the trade name Flexalum Roll-Up.
The years after World War II saw the widespread adoption of aluminum awnings on both storefronts and residences. Operable aluminum awnings incorporated a spring-loaded roller into the frontbar. Photo: NPS files.
The years after World War II saw the widespread adoption of aluminum awnings on both storefronts and residences. Operable aluminum awnings incorporated a spring-loaded roller into the frontbar. Photo: NPS files.
Also during this period, manufactured flat-metal canopies were an increasingly popular feature, used in new commercial construction and when remodeling existing storefronts. They were particularly common in the South where shading was critical to the comfort of both window shoppers and store interiors. Often made of aluminum, the canopies could stretch across a single facade, or be connected to extend along an entire block.
New Shapes. An increasing reliance upon fixed aluminum frames and plastic coverings, spurred the development of new awning shapes during the 1970s and 1980s. Often, the awning served as a business's primary sign. Mansard awnings, concave awnings, quarter-round awnings, and quarter-rounds with rounded dome ends appeared with increasing frequency. Most had vinyl or other plastic coverings that were touted as being more resilient than traditional materials. Featuring bold lettering and colors that were often emphasized by illuminating the awnings from within, these awnings were common on new commercial strips and were even popular inside enclosed shopping centers and food courts. They were also applied, less successfully, to older or historic buildings where their shape, size, and material bore little resemblance to traditional awnings.
Although the 1950s and 1960s saw the end of the canvas awning's ubiquity on Main Street, it remained a moderately popular feature of residential architecture. New materials and technologies such as lateral arm operators, acrylic fabric, and aluminum kept the awning relevant to the postwar ranch house and afforded an economical way to update older structures. Colorful awnings helped suburban dwellers distinguish their homes from other, similar, models in the neighborhood.
