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The curtain wall itself, however, is not ordinarily required to have a rating. This causes a quandary as compartmentalization (fire protection) is typically based upon closed compartments to avoid fire and smoke migrations beyond each engaged compartment. A curtain wall by its very nature prevents the completion of the compartment (or envelope).
[T 5] [14] The curtain wall is composed of two facing layers of regular limestone rubble, held together by mortar, with an irregular rubble core bonded with either mortar or clay. [T 6] [14] The wall is approximately two meters in thickness at its base, and the lower portion of its external surface exhibits a distinct batter. [14]
Curtain wall may refer to: Curtain wall (architecture) , the outer skin of a modern building Curtain wall (fortification) , the outer wall of a castle or defensive wall between two bastions
The 12th-century curtain wall of the Château de Fougères in Brittany in northern France, showing the battlements, arrowslits and overhanging machicolations.. In medieval castles, the area surrounded by a curtain wall, with or without towers, is known as the bailey. [4]
These walls, like those of Gallienus, were also built with the extensive use of spoil material: the discovery within them of a block bearing a table carved with the number LXIII belonging to the amphitheater indicates that the outer ring of it was destroyed precisely during the construction of this curtain wall. Its partial demolition was made ...
It is protected by the outer ward and, sometimes also a Zwinger, moats, a curtain wall and other outworks. Depending on topography it may also be called an upper bailey or upper ward . The inner bailey enclosed the most important living quarters and defensive elements for the lord and his family, e.g. the great hall , the palas , the tower ...
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Where turrets were built with the intention of bonding to a broad gauge curtain wall, they were given broad wing walls. However, there are many cases where the curtain wall actually constructed was of narrow gauge, giving a point of reduction where the curtain wall and turret wing walls join. To facilitate bonding with the curtain wall, wing ...