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Published on Jul 29, 2010
Heat is a form of energy and is measured in BTU or British thermal units. Insulation helps keep the house warm in the winter and cool in the summer by resisting or sustaining heat. Insulation helps keep your house comfortable and energy-efficient. Get expert advice from Johns Manville insulation professionals to help your insulation project. For more insulation videos, visit http://www.Lowes.com/Videos