Having the right level of attic insulation in your house is
definitely one of the most important considerations in keeping your energy
costs low. Attic insulation protects from the cold in the winter, and also
keeps the cool in during the hot summer months. What considerations factor in
towards making your attic a well insulated place?
Examine first the type of attic insulation you have. Many
older houses have what is referred to as batt insulation. That's the kind that
comes in large rolls, and is typically colored pink or yellow. The insulation
is spread out in the attic, generally between the wooden beams. The other kind
of insulation is called blow-in insulation. Blow-in insulation is typically
installed by professional contractors, as they have the correct equipment to do
the work. Small bits of insulation are mechanically wind blown into the attic,
creating the blanket across the attic floor. You will generally find this kind
of insulation in new houses.
There are of course good and bad with either batt insulation
or blow-in insulation. Batt insulation, when installed properly provides an
equal R-Factor through the attic. The R-factor is the measurement of the
overall performance of the insulation, and is also called the thermal
performance. It measures the resistance of the flow of heat. Batt attic
insulation that is properly installed will give you a uniform R-Factor through
the entire attic.
Alternatively, blow-in insulation is propelled into the
attic with a machine. While it is very difficult to blow it in uniformly
through the whole attic, the result is a variable R-factor in that space. As
long as the installation is done thoroughly, and the necessary minimum number
of inches sits on the flooring of the attic, the insulation will do the trick.
This makes the issue of a non-uniform R-factor a non-factor overall.
The money involved with batt and blow-in insulation is of
course another factor to consider. Usually batt insulation costs less to buy,
but your time is something to consider as well. Lots of time is needed to
correctly add insulation, or replace the existing insulation.
When adding attic insulation, you of course have to have the
right equipment, including proper clothes, lots of time, and plenty of
patience. Alternatively, you can always contract the job out for a little more
money, and have a blow-in insulation job completed in just a few hours without
as much trouble.
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