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The mansard roof and the reconstruction of Paris had a major impact on building design throughout Europe and the United States
Second Empire 1870-1890

Unlike other popular 19th century architectural styles, the Second Empire style was largely the product of new and emerging architectural fashions, rather than classical precedents from Gothic and Greek traditions.
The style itself was imported directly from France and relates to building projects, which were completed under the reign of Napoleon III (1852-70). During his time in office, Napoleon undertook a major building campaign that transformed Paris into a city of grand boulevards and monumental buildings. Many of these structures utilized a unique roof form that was originally developed by 17th-century French Renaissance architect, Francois Mansart.
Mansart had made extensive use of a four-sided, double slope gambrel roof which was punctuated with windows on the steeper lower slope, thus creating additional habitable space in the attic space. Such a design ultimately became named for him – the mansard roof.
Quickly, the mansard roof and the reconstruction of Paris had a major impact on building design throughout Europe and the United States. As domestic architecture, the Second Empire style was meant to portray a sense high culture; as public architecture, a sense of permanence and order. In fact, here in the U.S., the style was used for many public buildings during the Presidency of Ulysses S. Grant (1869-1877) and is therefore sometimes referred to as the “General Grant style.”
The peak of its popularity in the United States was from roughly 1855-1885, but the style rapidly faded from popularity following the panic of 1873 and subsequent economic depression. However like many early styles, the Second Empire style remained in vogue in the Pacific Northwest for much longer than in other parts of the U.S., with the best examples in Washington state being built in the mid to late 1880s.
In reality, the Second Empire style utilized the design characteristics of several historical forms, thereby departing from the custom of imitating established idioms. Free adaptation, allowing architects far more leeway in their designs, mirrored the belief that in America, one could pick and choose the best from the past. This philosophy drove a mix-and-match sensibility. One constant of the style however is the mansard roof. But beneath their distinctive roofs, Second Empire buildings had much in common with other Victorian-era styles, particularly the Italianate style. Similarities between the Second Empire and Italianate are found in their stylistic use of overhanging eaves with decorative brackets, ornate door and window hoods, and bay windows.
Residences designed in this style were, generally large and built for affluent homeowners. At its most elaborate, the look was sometimes described as a wedding cake. The styles popularity also led to a widespread remodeling boom during which mansard roofs were incorporated into formerly pitched-roof residences.
Mansard roofs are actually hipped and double sloped, with a nearly vertical lower slope, and a much flatter upper slope that typically isn’t usually visible from ground level. The four-sided, double sloped approach made these roofs extremely functional as well as attractive, and allowed for large three story floor plans. The lower slope took on several shapes over the course of the style’s development: straight-angled, convex, concave, and even “S” curved shapes, all with or without dormers. Here in the Pacific Northwest most roofs were covered with wood shingles (instead of slate), some stained in a variety of colors to create a unique decorative pattern.
Another common feature of the Second Empire architecture was a tower, or tower-like element. The tower can be square or rectangular and placed either symmetrically or asymmetrically. Other decorative details included iron cresting on the roof, heavily bracketed cornices, quoins, and balustrades. The general effect is monumental and ornate, appropriate to the style’s Napoleonic roots.
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