Energy
Efficient Remodeling - Summing it all up!
Over the past several
months we have been discussing Green Remodeling and the three
science principles that are the major drivers and those
impacted. As a refresher, these principles are Heat
Transfer, Moisture Management and Airflow and Pressure. Now
lets take a look at summing up these items relative to the
functional areas of your home.
Consider the following
methods and materials that can achieve high levels of energy
efficiency and environmental responsibility in a remodeled
house:
Windows and
Doors: The key to saving energy is to control it. In
particular, leaks and thermal transfer around and through older,
single-pane, aluminum-framed windows make it impossible to regulate
and manage a home's energy use. Replacing outdated and inefficient
windows and patio doors with insulated, dual-paned windows
dramatically reduces the waste of energy used to heat and condition
indoor air. Just as important as the window units themselves is
their correct installation: The structural frame openings should be
square, allow some small measure of expansion and contraction to
avoid racking the window or door, and be sealed against air transfer
with insulation and/or a caulking agent. An air and moisture barrier
is also helpful when installed around the rough opening.
Sealed
Penetrations: Though obviously much smaller than a window
or door, small penetrations in exterior walls and the roof -- such
as those for venting, plumbing, and other services -- can add up to
big leaks and high energy bills. Simply sealing these openings,
often with a spray-applied, expanding foam product, all but
eliminates air leaks and the accompanying thermal
transfer.
Semi-Conditioned
Space: For years, home energy experts have advocated adding
insulation in the attic to reduce thermal transfer between the
living areas below and the unconditioned space within the roof
structure. With the advent of expanded foam insulation for the roof
frame cavities, owners of older houses can easily upgrade the entire
attic to a semi-conditioned space. Differences in temperature and
pressure between the attic and the living spaces are reduced, thus
lessening thermal loss for the entire house. Homes in hot, humid
regions experience additional benefit because moisture build-up is
less likely.
Upgraded
Equipment: There's no reason why an older home can't garner
benefits from today's high-efficiency furnaces, air conditioners and
heat pumps to create a comfortable and clean indoor environment. It
is possible that the newer systems might require slightly more
ductwork (air distribution channels) than exists in an older home,
but otherwise -- assuming other upgrades are also made, such as
windows and doors -- the benefits of a modern HVAC unit are easily
attained. These units save energy by recovering (or recapturing)
more of the heat or cold from exhausted air (depending on the
season), which is then transferred to fresh air coming into the
house.
These are just a few
examples of what can be done to upgrade your home to that
of a new house energy efficiency. In fact, there is scarcely an
energy-efficient product, system, or method that cannot be included
with advantage in a remodeling project.
Warm
regards,
 
John Todd
Elite Remodeling
Showroom
& Design Center
2930 Preston Road, Suite
980
Frisco, Texas, 75252
(972) 334-9800 -
phone
(972) 334-9890 - fax
jtodd@elitehomeremodeling.com
www.elitehomeremodeling.com
c. 2009 All
rights reserved.
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