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Eaves must be designed for local wind speeds as the overhang can significantly increase the wind loading on the roof. [7] The line on the ground under the outer edge of the eaves is the eavesdrip, or dripline, and in typical building planning regulations defines the extent of the building and cannot oversail the property boundary.
Along with clearance, length of overhangs affects the approach and departure angles, which measure the vehicle's ability to overcome steep obstacles and rough terrain.The longer the front overhang, the smaller is the approach angle, and thus lesser the car's ability to climb or descend steep ramps without damaging the front bumpers. [1]
Historically, roof pitch was designated in two other ways: A ratio of the ridge height to the width of the building (span) [6] and as a ratio of the rafter length to the width of the building. [7] Commonly used roof pitches were given names such as: Greek: the ridge height is 1 ⁄ 9 to 1 ⁄ 7 the span (an angle of 12.5° to 16°);
Overhangs on two sides of Pennsylvania Dutch barns protect doors, windows, and other lower-level structures. Overhangs on all four sides of barns and larger, older farmhouses are common in Swiss architecture. An overhanging eave is the edge of a roof, protruding outwards from the side of the building, generally to provide weather protection.
A chhajja is an overhanging eave or roof covering found in Indian architecture. It is characterised with large support brackets with different artistic designs. Variation is also seen in its size depending on the importance of the building on which it features or the choice of the designer. [1]
The overhang became especially exaggerated in some areas with copious amounts of rainfall, such as the Eastern Shore of Mobile Bay in Alabama. Here the roof overhang ranged between 3 and 6 feet (0.91 and 1.83 m) beyond the porch deck, in effect creating a lower and upper porch. [3]
Cross hipped: The result of joining two or more hip roof sections together, forming a T or L shape for the simplest forms, or any number of more complex shapes. Satari: A Swedish variant on the monitor roof; a double hip roof with a short vertical wall usually with small windows, popular from the 17th century on formal buildings.
Scarf joints were needed to join timbers longitudinally because these barns are larger in size and the timber supply was more limited so full length timbers were not available. Roof overhangs of a foot are typically built in on the gables and eaves protecting the walls from water. Later in the 19th century these barns may also have ventilators ...
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