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Houston Radiant Barrier
Radiant Barrier Installers
When you are looking for a Houston radiant
barrier
installation company, in Greater Houston, TX then you are looking for us. We
are radiant barrier installers, we will
match or beat competitor radiant barrier prices,
show us the proposal and we will do better! Call us for a no obligation
education and discussion regarding the many options
available when it comes to radiant barrier
installation.
Radiant barriers are materials that are
installed in buildings (homes) to reduce summer heat gain
and winter heat loss, and reduce building heating and
cooling energy usage. The benefit of attic radiant barriers
is to reduce air-conditioning cooling loads in hot climates
such as Houston, Texas. Radiant barriers usually
consist of a thin sheet or coating of a highly reflective
material, usually aluminum, applied to one or both sides of
a number of substrate materials. These substrates
include kraft paper, plastic films, cardboard, plywood
sheathing, and air infiltration barrier material.
How do
radiant barriers work? Radiant barriers work by reducing heat
transfer by thermal radiation across the air space between
the roof deck and the attic floor, where conventional
insulation is usually placed. All materials give off, or
emit, energy by thermal radiation as a result of their
temperature. The amount of energy emitted depends on the
surface temperature and a property called the "emissivity"
(also called the "emittance"). The emissivity is a number
between zero (0) and one (1). The higher the emissivity, the
greater the emitted radiation.
A closely related material property is the "reflectivity"
(also called the "reflectance"). This is a measure of how
much radiant heat is reflected by a material. The
reflectivity is also a number between 0 and 1 (sometimes, it
is given as a percentage, and then it is between 0 and
100%). For a material that is opaque (that is, it does not
allow radiation to pass directly through it), when the
emissivity and reflectivity are added together, the sum is
one (1). Hence, a material with a high reflectivity has a
low emissivity, and vice versa. Radiant barrier materials
must have high reflectivity (usually 0.9, or 90%, or more)
and low emissivity (usually 0.1 or less), and must face an
open air space to perform properly.
On a sunny summer day, solar energy is
absorbed by the roof, heating the roof sheathing and causing
the underside of the sheathing and the roof framing to
radiate heat downward toward the attic floor. When a radiant
barrier is placed on the attic floor, much of the heat
radiated from the hot roof is reflected back toward the
roof. This makes the top surface of the insulation cooler
than it would have been without a radiant barrier and thus
reduces the amount of heat that moves through the insulation
into the rooms below the ceiling.
Under the same conditions, a roof mounted radiant barrier
works by reducing the amount of radiation incident on the
insulation. Since the amount of radiation striking the top
of the insulation is less than it would have been without a
radiant barrier, the insulation surface temperature is lower
and the heat flow through the insulation is reduced.
Radiant barriers can also reduce indoor
heat losses through the ceiling in the winter. Radiant
barriers reduce the amount of energy radiated from the top
surface of the insulation, but can also reduce beneficial
heat gains due to solar heating of the roof.
Call us for a free estimate.
Free no-obligation
in-home estimate.
Contact us via phone or
email. We will contact you
within 24 hours.
"Thank
for a great price on radiant barrier, you guys are
cheaper than EAS and the so called 1/2 off guys.
Thanks"
- John W.
Free no-obligation