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the summer, heat flows naturally from a warm place to a cooler space.
In the winter, heated air will try to flow to an unheated garage,
basement … or attic. To maintain your comfort, the heat lost
in winter must be replaced by your heating system and the heat gained
in summer must be removed by your air conditioner. The majority
of heat transfer in homes takes place in the largest room of your
house…the attic.
Insulation is rated in terms of thermal resistance called R-value.
The thicker your attic insulation is, the higher R-value your home
will have. Currently, the Department of Energy is recommending an
R-49 for our area. An R-49 equals 18” of insulation on your
attic floor!
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