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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]
Larger curtain walls were provided with mural passages or galleries built into the thickness of the walls and provided with arrowslits. If an enemy reached the foot of the wall, they became difficult to see or shoot at directly, so some walls were fitted with a projecting wooden platform called a hoarding or brattice.
Download as PDF; Printable version; In other projects Wikidata item; ... Curtain wall may refer to: Curtain wall (architecture), the outer skin of a modern building;
The curtain wall was constructed in sections of 3 to 8 meters in length, using a variety of materials and specialized teams, [G 12] [B 8] reaching a height of over 10 meters. [ AA 7 ] Construction was interrupted due to the necessity of allowing the mortar to dry or the influence of inclement weather.
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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They were 15–20 m tall and 10–12 m wide, and placed at irregular distances, according to the rise of the terrain: the intervals vary between 21 and 77 m, although most curtain wall sections measure between 40 and 60 meters. [43] Each tower had a battlemented terrace on the top.