the.com/cladding

A building's raincoat that, chosen poorly, turns into its gasoline-soaked sweater.

means An outer layer applied to a building's walls for weatherproofing, insulation, or appearance, not load-bearing but far from decorative only.

from From 'clad,' meaning covered or dressed, which traces back to Old English 'clæthian' (to clothe). The metallurgical sense — bonding one metal over another — arrived first in industry; the building-skin sense followed, carrying the same idea of a garment fitted over a structural body.

purpose
weatherproofing and looks, not structural support
grenfell link
flammable cladding turned 2017 fire catastrophic
common materials
aluminium composite, timber, brick slips, zinc
hidden risk
the gap behind it can funnel flames upward
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