Insulation 101

Attic insulation’s purpose is to keep your home warmer in the winter and cooler in the summer. Heat naturally flows from a warmer area to a cooler one. It does this in only three ways: conduction, where heat is transferred directly from mass to mass; convection, the movement of heated air from one space to another (hot air rises, heavier cool air sinks); and radiation, which simply means that any warm body gives off heat toward a cooler one. The function of insulation is to minimize the radiation and convection transfer of heat with a minimum of solid conduction so that our homes stay warmer in cool weather and cooler in warm weather.

Roofing & More, Inc., uses Guardian E-Z Attic Insulation for their projects. E-Z Attic is a yellow, loose-fill fiberglass and is installed manually by spreading the insulation over an area to a specified thickness to achieve the desired thermal value. The U.S. Department of Energy has established minimum recommended insulation R-values for 7 distinct parts of the country, or insulation zones. “R” stands for ‘resistance to heat flow.’ The greater the R-value, the greater the insulative power. R-value requirements depend on factors such as local climate and the surface you are insulating (walls, ceiling, floor, etc.) will be regulated and by your local building code.

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