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Interlocking metal pan roof systems installed on mobile homes can fail under the pressure differential (lift) created by the high-velocity winds passing over the surface plane of the roof. This is compounded by the wind entering the building allowing the building interior to pressurize, lifting the underside of the roof panels, resulting in the ...
Since 26 December 2021, the tallest free-standing flagpole in the world is the Cairo Flagpole, located in the New Administrative Capital, Egypt at a height of 201.952 m (662.57 ft), exceeding the former record holders, the Jeddah Flagpole in Saudi Arabia (height: 171 m, 561 ft), the Dushanbe Flagpole in Tajikistan [5] [6] (height: 165 m, 541 ft ...
This list of flagpoles by height includes completed flagpoles which are either free–standing or supported, excluding the height of any pedestal (plinth), building, or other base platform which may elevate them. Due to the list's incomplete nature, flagpoles shorter than 120 m (390 ft) are not ranked.
On wall-mounted and roof-top flagpoles the middle of the flag should fly at the middle of the flagpole. When removing the flag from half-mast, it is briefly hoisted to the finial before lowering. Traditionally, private residences and apartment houses fly the national flag at half-mast on the day of the death of a resident, when the flag is ...
The Tower of the Winds in the agora in Hellenistic Athens once bore on its roof a weather vane in the form of a bronze Triton holding a rod in his outstretched hand, rotating as the wind changed direction. Below this a frieze depicted the eight Greek wind deities. The eight-metre-high structure also featured sundials, and a water clock inside ...
Decorative arched wind braces between purlins- 15th-16th century In architecture , wind braces are diagonal braces to tie the rafters of a roof together and prevent racking . In medieval roofs they are arched, and run from the principal rafters to catch the purlins .