adelias. Ceiling Fan. February 03rd , 2018.
Don't get me wrong – attics can be useful and practical storage spaces. They can also be dead space, though, where nothing ever goes in and nothing ever comes out. For the latter, vaulted ceilings capitalize on this otherwise wasted space and make it much more beautiful for the residents. That's an incredible bonus.
The rib vault came about in medieval times, where builders set up diagonal ribs first and then built the vaulted ceilings on these. And the fan vault is a fancy, filled-out version of the rib vault, in which the lower portion of the arch forms the smallest part of an open fan and the upper part extends outward like an open fan. (Check out Encyclopedia Britannica for more information on vaulted ceilings.)
Domes were the first popular vaulted ceiling option – imagine a hollow sphere cut in half. Built at times before history was even history, domes have been constructed out of mud, stone, wood, brick, concrete, metal, glass, and even plastic. The barrel vault (aka wagon vault and tunnel vault) stemmed from the dome and is the simplest kind of vault – a semicircle stretched into a continuous arch. Next came the groin vault, which is where two barrel vaults cross one another and create a true ellipse intersection known as a groin.
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