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Does fiberglass insulation lose its properties?

April 26, 2017Construction fiberglass garden Home insulation lose maintenance properties

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Does fiberglass insulation lose its properties?

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Fiberglass insulation may lose its R-Value (a measure of insulating efficiency) in certain conditions. Wet fiberglass will lose R-Value as will compressed fiberglass, for example, because both lead to loss of air pockets in the insulation that provide fiberglass its insulating power. Fiberglass insulation also loses R-Value in cold weather.Source:Bob Vila: Insulating Ducts for Efficiency: Aternatives (2nd parag.