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It is in gritstone with red brick in the soffit, and consists of a single segmental arch with rusticated voussoirs ending as quoins. The arch springs from impost bands, and it has a keystone. Framing the arch are piers, and the wing walls end in semi-octagonal piers. [30] II: Beatties Bridge
The central doorway has a quoined surround, moulding to the arris, and a lintel with a triangular soffit. Above the doorway is an inscribed and dated plaque, and the windows are sashes. At the rear is a round-arched stair window, and the surrounds of double-chamfered two-light mullioned windows. [21] Obelisk
For residential buildings, which mostly rely on infiltration for meeting their ventilation needs, a common ventilation rate measure is the air change rate (or air changes per hour): the hourly ventilation rate divided by the volume of the space (I or ACH; units of 1/h). During the winter, ACH may range from 0.50 to 0.41 in a tightly air-sealed ...
A ridge vent is a type of vent installed at the peak of a sloped roof which allows warm, humid air to escape a building's attic. Ridge vents are most common on shingled residential buildings. Ridge vents are also used in industrial warehouses to help release the hot air and help circulate comfortable air inside the building .
In the main part is a central doorway with a hexagonal window above. In the left part is a doorway in a later conservatory, and to its left is a re-set doorway with a chamfered quoined surround and a shaped soffit to the lintel. Above it are slit vents, and on the left return are external steps. [29] II: Wayside Cottage
A trickle vent is a very small [quantify] opening in a window or other building envelope component to allow small amounts of ventilation in spaces intended to be naturally ventilated when major elements of the design—windows, doors, etc.—are otherwise closed.
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