Insulation belongs inside or against any barrier located between a cooled space and an uncooled space. When we apply it to the structure of a house it means that insulation should be within all exterior walls, under roofs or in attics, and beneath floors exposed to the outside. It is necessary that insulation will cover all the living areas of the house. Any openings except doors, windows and necessary vents should be covered by insulation. Sealing a home is a simple process if done during construction of the house, also, it is cheap considering the energy saved in the long run. After the electrical, plumbing and heating systems have been constructed, installed and inspected, the insulation will be installed.
R-Values
An R-value stands for the ability of a material to resist the passage of heat. The greater R-Value, the better is its insulation value, and the material’s resistance to the passage of heat or coolness. A fiberglass batt 4-inches thick, has an estimated R-Value of 11, the same material in batts 10-inches thick, will have an R-Value of about 30. In a house the greatest potential heat loss will come from the roof, and the least from the floors. Therefore, there are different R-Values that are recommended for different areas in the house. Such as, walls – R30, floors R-19, attics- R30.
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