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Definition: insulation from Dictionary of Energy

Materials. 1. the act or fact of insulating. 2. any material employed to reduce or prevent the transfer of electricity, heat, cold, or sound; used in walls, ceilings, floors, and other building spaces. 3. a nonconducting material used to provide electric isolation of two or more conductors.

insulation

From The Columbia Encyclopedia
(ĭn´´sӘlā'shӘn, ĭn´´syʊ–), use of materials or devices to inhibit or prevent the conduction of heat or of electricity. Common heat insulators are, fur, feathers, fiberglass, cellulose fibers, stone, wood, and wool; all are poor conductors of heat. The use of asbestos , formerly a common insulating material, has been curtailed due to its implication in lung disease. Industrial furnaces are built of brick, which conducts heat so slowly that a high temperature within is barely apparent in the temperature of the outer surface. Steam pipes and water pipes are commonly insulated with thick wrappings of fiberglass pulp. Since insulators prevent the flow of heat in either direction, refrigerators are commonly constructed with double walls separated by an air space (air being a poor conductor) and lined with some insulating material. The use of double walls or hollow tiles in buildings prevents the entrance of heat and its escape. The very effective insulation in a vacuum bottle results almost…
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Full text Article insulation

From The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide
Process or material that prevents or reduces the flow of electricity, heat, or sound from one place to another. Materials that are poor conductors of heat, such as glass, brick, water, or air, are good insulators. They play a vital role, for example, in keeping homes and people warm. Electrical…
| 252 words
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Full text Article Insulation Workers

From Occupational Outlook Handbook
Quick Facts: Insulation Workers Median Pay The wage at which half of the workers in the occupation earned more than that amount and half earned less. Median wage data are from the BLS Occupational Employment Statistics survey. In May 2016, the median annual wage for all workers was $37,040. $39,930…
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Full text Article insulation

From The Columbia Encyclopedia
(ĭn´´sӘlā'shӘn, ĭn´´syʊ–), use of materials or devices to inhibit or prevent the conduction of heat or of electricity. Common heat insulators are, fur, feathers, fiberglass, cellulose fibers, stone, wood, and wool; all are poor conductors of heat. The use of asbestos , formerly a common insulating…
| 357 words
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Full text Article insulation in the home

From The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide
insulation in the home
Some ways of insulating a house. One quarter of the heat energy loss in a house is lost through the roof. Insulating the loft with a fibre-fill material helps to reduce heat loss as the fibres trap air, which is a poor conductor of heat. Cavity wall insulation works in a…
| 104 words , 1 image
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Full text Article insulation

From The American Heritage(R) Dictionary of the English Language
| 40 words
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Full text Article insulation

From Dictionary of Architecture and Construction
| 8 words
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Full text Article insulation

From The Macquarie Dictionary
| 26 words
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Full text Article insulation

From The Penguin Dictionary of Science
| 48 words
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Full text Article Insulation

From Dictionary of Industrial Terms
| 31 words
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Full text Article insulation

From Merriam-Webster's Medical Dictionary
| 61 words
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