insulation

/ˌɪnsjʊˈleɪʃən/noun

Material fitted in a building to slow heat from escaping or entering.

Example sentence

“Adding insulation to the attic cut our heating bill in half.”

Also figurative: wealth can provide insulation from hardship. The verb 'insulate' takes 'from' or 'against'.

Related words

foundationThe solid base, usually below ground level, on which a building or other structure rests and is supported.wiringThe network of electrical wires in a building or device.brickworkThe part of a building or other construction built from bricks.plumbingThe network of pipes, taps, tanks, and related fittings that carry water, gas, or waste through a building.plasterA soft, sticky preparation spread on the skin to help it heal or improve its appearance.boilerA machine that heats water or another liquid so the heat can be carried through a system.