Spray-On & Foil Insulation Radiant Barrier
Help for Hot Homes in
Dallas-Ft. Worth & Houston
What Is a difference between Radiant Barrier Spray
and Radiant Barrier Foil?
Both the spray and the foil "Reflect" radiant
heat. The spray can reflect up to 75% and the Foil will reflect about 97%.
Foil is actually the "Best" radiant barrier. You can do-it-yourself
by ordering Radiant Barrier
Foil here. Foil is the best and most cost effective way to go whether
you staple it to the rafters or lay out radiant barrier over the existing insulation.
For complete information comparing the benefits of radiant barier foil insulation
to radiant barrier
spray paint visit www.AtticFoil.com
What Is a Spray-On Radiant Barrier?
Spray-On Radiant Heat Barrier
is essentially a "liquid foil". We all know that foil is
a heat barrier. Thre are many brands of paint and have different
performance characteristics. The best are water-based low-e paint
called HeatBloc-75 made
by STS Coatings or
Radiance e.25. made by BASF. It
CAN be a good product if installed correctly. However, foil is indisputable
for out performing
radiant barrier spray paint. Read this report from RIMA for complete comparisons
of rdiant barrier paint.
How does a Radiant Barrier work?
Whether you chose to have the
Radiant Barrier Paint sprayed or you
choose to do-it-yourself
or hire a professional to install Radiant Barrier
Foil insulation, your home will be more comfortable
and energy efficient. Radiant barrier paint has
up to an "e" value
of 0.25. This means it reflects or "blocks" 75%
of the Radiant Heat transfer from the roof into the
attic and then the
home. The Radiant Barrier Foil has and "e" value
of about .03 meaning it will reflect or block nearly
OF THE HEAT GAIN!! This
is similar to having a Giant Shade Tree instantly
land in your yard! By
reducing the radiant heat gain, the attic temperature
as 20-30 degrees. More important than the attic temperature
is the reduction in radiant heat transfer into the
attic and home. The best way to demonstrate this
is to ask
- Would you feel "cooler" sitting in the
SHADE on a 100 degree day or sitting in the SUN on
an 80 degree day?
Most would agree they would rather be in the shade
even though the air is hotter. The bottom line...A
barrier will act like shade for you home. This means
less heat gain into your living space and a cooler,
comfortable home with lower
A radiant barrier will help stop the heat at the source. Think
about this. Where does most of the heat come from on a hot summer day? The
the sun drives right through your roof, your attic and into your home. A radiant
barrier acts like a mirror or the reflective sunscreen you put up in your
car. A radiant barrier saves you money on your summer electric bill and can
usually pay for itself in between 2-5 years.
How is Radiant Barrier
Radiant Barrier Spray Paints
are sprayed on the underside of the roof deck and Radiant
Barrier Foil Insulation is either stapled across the
rafters or layed out over the existing blown-in insulation.
Why is it Applied to the UNDERSIDE
of the roof?
At first it does not make sense,
but think about this. If you hold a mirror up to the
sun and reflect the light on your arm you would SEE
the light, but you would FEEL the heat. The sun emits
both visible light and invisible infrared energy. It
is the infrared energy that is being reflected that
you feel, NOT the light. Radiant barrier has two qualites
that make it work: Reflectivity and Emissivity. Reflectivity
is the ability to "reflect" radiant heat
while Emissivity is the abiltiy NOT ro "Release" heat
in the form or radiant energy. Want more info? Polar-Ply (a
radiant barrier roof deck material designed for new
construction has a good website) So, even thought radiant
barrier is installed underneath the roof it will still
reflect the radiant heat flow.
What about A "Radiant Barrier
Some companies use a "Rebate"
as a sales gimmick. If they raise their price and then
give a "rebate" do you really get a "deal"?
Radiant Barrier Contractors
We are currently serving or
seeking contractors in the following cities: Dallas,
Ft Worth, DFW area, Austin, San Antonio, Houston
Area, Bryan, College Station, Huntsville TX, Corpus
Christi, Laredo, Lubbock, San Antonio, El Paso, Albuquerque,
Phoenix, Tucson, Atlanta, Las Vegas, Shreveport,
Orlando, Jacksonville, Pensacola, Miami.
Barrier • Spray
Foam Insulation • Radiant
Barrier Savings • Products & Services • Radiant
Pics • Foil • Radiant
List • Radiant Heat
Gain • Attic Ventilation Info • Attic
Problems • Wood Roof Problems• Radiant
Services • Links • Contact • Radiant
Heat Information • Cirro
The Savings Begin!
| Radiant Barrier
Spray - Installation
Barrier Spray - Sprayed directly on the
bottom of the roof deck from inside the
get the full 75% effectiveness, a good product
paint must be used AND the rafters MUST be