definition
strict definition
cast iron
Facade elements cast from molten gray iron or related iron alloys, often molded into decorative architectural forms.
A cast iron facade is constructed of heat-molded gray iron or iron alloys. It can be molded into architectural forms and painted, but is susceptible to rust. Compared to steel it is very brittle and lacks tensile strength. It was widely used in some 19th-century commercial districts, but is no longer a common facade material in most places.
Molten metal takes the shape of the mold, allowing repeated architectural elements. The resulting cast pieces can be assembled into a facade.
Cast iron can rust when exposed to moisture and oxygen. Protective finishes and the condition of the metal affect the durability of an exposed facade.
Related definitions
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aluminum
A lightweight, silvery metal commonly used in facade panels and curtain-wall framing, with good corrosion resistance. -
bronze
A copper-based alloy, usually containing tin, used in sculptures and decorative building facades. -
copper
A reddish-brown chemical element which weathers to brilliant green with age. -
stainless steel
Corrosion-resistant steel containing at least 10.5 percent chromium, used for durable metallic facade surfaces. -
steel
An iron-based alloy containing carbon, used for strong metal facade surfaces with protection appropriate to exposure. -
titanium
A lightweight, silvery, corrosion-resistant metallic element used as a building facade material. -
weathering steel
Steel formulated to develop a protective weathered rust layer, commonly giving exposed facades an orange-brown appearance. -
zinc
A silvery gray metal with a slight bluish tint, used in facades for its appearance and corrosion resistance.