An elevated structure on an open foundation reduces the risk of damage from flooding and storm-driven water.The design of the cyclonic home includes simple systems to reduce the local wind stresses at the roof's lower edges such as a notched frieze or a horizontal grid to be installed at the level of the gutters along the perimeter of the home.In the design of the hurricane-resistant home, the length of these overhangs should be limited to 20 inches. Roof overhangs are subject to wind uplift forces which could trigger a roof failure.This connection helps balance pressures leading to a significant reduction in the roof's wind loads. In the cyclonic home design, CSTB researchers proposed some aerodynamic features to alleviate these local pressures such as introducing a central shaft which would function by creating a connection between the internal space and the roof ridge considered to be the location of the largest depression. Certain areas of a building such as the ridge of a roof, corners and eaves are normally subject to higher wind pressures.Connections are generally vulnerable but can be inexpensively strengthened. Structural failure is often progressive where the failure of one structural element triggers the failure of another, leading to a total collapse. Strong connections between the structure and its foundation and connections between walls are good.Stapled roofs were banned following Hurricane Andrew in Florida in 1993. This explains why roofs are often blown off during an extreme wind event. Wind forces on a roof tend to be uplift forces.A 30-degree roof slope has the best results. Gable roofs are generally more common because they are cheaper to build. Roofs with multiple slopes such as a hip roof (4 slopes) perform better under wind forces than gable roofs (2 slopes).A home with a square floor plan (or better a hexagonal or octagonal plan) with a multiple-panel roof (4 or more panels) was found to have reduced wind loads.CSTB is working with a builder to construct a prototype of such a home on Réunion in the West Indian Ocean.įrom this work and other studies Taher recommends the following construction considerations for homeowners in hurricane-prone regions. Wind tunnel tests at CSTB showed that such a home would be far more efficient under high winds and hurricane conditions than a typical structure. The home had a hip roof and was equipped with a central shaft with aerodynamic features designed to reduce wind forces during an extreme wind event. That design eventually became an elevated structure of a square plan form on an open foundation. Taher cooperated with the CSTB wind researchers, working on the structural aspect of the home's design. Wind researchers at the Center for Building Science and Technology (CSTB) in France, researched and tested reduced-scale home models at its wind tunnel facilities, and developed a prototype of a "cyclonic" or hurricane-resistant dwelling. "Design of Low-Rise Buildings for Extreme Wind Events" (Journal of Architectural Engineering, March, 2007) by Taher highlighted such research findings. "However, it is obvious that thanks to the work of wind engineers and researchers that changes to home design and construction can make buildings safer for people, while saving government and industry billions of dollars annually." The project was built by Sonora West Development of Scottsdale, AZ."Although I'd like to say that there is a simple and economical solution for housing that won't fail or collapse in the perfect storm, such information does not yet exist," said Taher. The owners also enlisted the help of Interior Designer Sharon Fannin. Features of the house include white-oak ceilings, exposed steel trusses, Eucalyptus-veneer cabinetry, honed Pompignon limestone, concrete, granite, and stainless steel countertops. These main areas "loft" over a basement level featuring 4 bedrooms, a guest room, and a kids' den. Drewett, offers breathtaking views of Camelback Mountain from the entire main floor, guest house, and pool area. Family-friendly, low-profile furnishings in a cozy cluster reflect the homeowners’ preference for organic Contemporary design.įeatured in the November 2008 issue of Phoenix Home & Garden, this "magnificently modern" home is actually a suburban loft located in Arcadia, a neighborhood formerly occupied by groves of orange and grapefruit trees in Phoenix, Arizona. Release the mouse button, move your cursor into the middle of. Click and drag along one of the exterior walls on which the straight sides of the barrel ceiling will rest to create a ceiling baseline. Select Build> Roof> Ceiling Plane from the menu. Wood accents, including the white oak ceiling and eucalyptus-veneer entertainment center, lend earthiness. With the default flat ceiling removed from the room, you can now create a curved barrel ceiling. The living room showcases such loft-inspired elements as exposed trusses, clerestory windows and a slanting ceiling.
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