How Insulation Works
You need insulation in your home to provide
resistance to heat flow. The more heat flow resistance your
insulation provides, the lower your heating and cooling costs.
naturally from a warmer to a cooler space. In the winter, this
heat flow moves directly from all heated living spaces to adjacent
unheated attics, garages,
basements, and even to the outdoors. Heat flow can also move
indirectly through interior ceilings, walls, and floors—wherever
there is a difference in temperature. During the cooling season,
heat flows from the outdoors to the interior of a house.
comfort, the heat lost in the winter must be replaced by your
heating system and the heat gained in the summer must be removed
by your cooling system. Properly insulating your home will
decrease this heat flow by providing an effective resistance to
the flow of heat. An insulation's resistance to heat flow is
measured or rated in terms of its thermal resistance or R-value.
Adding Insulation to an Existing Home
Unless your home was specially constructed
for energy efficiency, you can usually reduce your energy bills by
adding more insulation.
older homes have less insulation than homes built today, but
adding insulation to a newer home may also pay for itself within a
(Left, Improper attic Insulation)
How much Insulation do
Today’s standard building code has
recently been upgraded to R-38 in the attic. The thicker your
insulation, the higher the R-value and comfort level, but there
comes a point where additional material will not serve to provide
additional performance….call us for a free consultation.
No matter what kind
of insulation you currently have in your attic, one quick way to
determine if you need more is to look across the span of your
attic. If your insulation is just level with or below your ceiling
joists (i.e. you can easily see your joists), you should add more.
is important that the insulation be evenly distributed with no low
spots, sometimes there is enough insulation in the middle of the
attic and very little along the eaves.
adding insulation over ceiling joists)
Watch Attic Insulation Video
Watch Radiant Barrier Installation Video