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Welcome to the online home of Breighner
Enterprises!
We are a proud distributor and dealer of ESP Low-E Insulation. Check our products page to see what insulation products we have available and how they can help you start saving money today!
Low-E Housewrap is an easy to install product that can start saving you money right away. We have it in stock!
Fact Sheet On Low-E Insulation
- LOW-E reflective insulation products do have a tested R-Value. The R-Value
tests are the same ASTM standards that fiberglass products are tested
by.
- The micro-cell foam core won’t wick moisture and is bird,
mice and insect resistant.
- LOW-E has a perm rating of .008 and is truly effective in protecting
the underside of a metal roof panel against moisture from condensation
and wicking.
- Every metal roof manufacturers specifications recommend a moisture barrier
under their metal roof panel.
- Even when outside temperatures exceed 100 degrees the LOW-E insulation
averages an internal building temperature of 80 degrees or less reducing
heat stress on the workers or materials being stored in the building. The
pure aluminum surfaces reflect heat away in the summer and keep it inside
the building or fiberglass in the winter.
- Research done in 1995 by the Florida Solar Energy Center, the Tennessee
Valley Authority, the Oak Ridge National Laboratory, Texas A&M, and
several others showed that a properly installed (reflective) radiant barrier
system with R-19 glass produced a lower annual energy consumption than
R-30 alone in climates similar to Austin TX. This research proves that
fiberglass isn’t the answer to stopping the tremendous amount
of heat gain in the hotter climates.
- NAIMA (North American Insulation Manufacturers Association) states that
the installed R-Value for an R-19 of metal building fiberglass insulation
run over the purlins and compressed is an R-11.
- Based on the ASHRAE 90.1 energy code standard in almost 1/3 of the United
States, an average installed R-Value of R-11 is acceptable.
- The performance of fiberglass insulation is greatly reduced in hotter
humid climates because of the radiant heat gain and the moisture fiberglass
absorbs. This moisture can damage the underside of a metal roof panel.
- LOW-E can be installed alone and replace up to 3” of fiberglass
insulation or in a combination system (between the fiberglass and the metal
roof panel) to obtain higher R-Values and better performance. The LOW-E
insulation reflects the heat back into the fiberglass so the fiberglass
doesn’t cool off and keep absorbing heat from the building, reducing
heating bills in the winter. When installing LOW-E alone you don’t
need to specify the pinch bars necessary to compress the fiberglass and
when installed it won’t cause the metal to oilcan.
- Low-E insulation does not cause purlin read and can be used over
open framing or solid substrates. It is particularly useful with metal
roof systems that have less than a 3/8” gap between the roof
panel and the substrate.
- LOW-E insulation is also effective in cold climates. One layer of LOW-E
and 1 layer of fiberglass will provide more overall thermal protection
than 2 layers of fiberglass metal building insulation, while still meeting
the building code R-Value requirements.
- Freight costs are drastically reduced. 125,000 sq. ft. of LOW-E insulation
can be shipped in a 48’ trailer. Large jobs can be custom cut
and shipped directly to the job site.
I WOULD LIKE TO SUGGEST LOW-E INSULATION
ESP LOW-E® INSULATION
AND WHY IT WORKS
The primary function of LOW-E INSULATION TM is to reduce by reflection the amount of radiant energy transfer through your building envelope.
Reflective Insulation and R-Values:
Reflective insulation products depend on several
things to obtain their R-Value. The E-Value of the aluminum surface,
the R-Value of the core material and the size of the enclosed or open-air
spaces facing the aluminum. All of these components are referred to
as a system R-Value. A ¾” air
space facing the aluminum is ideal because convection currents
cannot begin to move in an air space this small. The aluminum actually
increases the R-Value of the air space it faces. That is why the tested
R-Values are so high on LOW-E INSULATION TM. Keeping this in mind you
can see the importance of making certain an air space is maintained
facing the aluminum on both sides if at all possible. The air space
also works as an insulating thermal break. A good example of this would
be an old fashion Thermos (R) bottle. Based of the same principle
as reflective insulation, it consists of aluminized glass, still
air and aluminized glass.
Regardless of how high the R-Value is on an
insulation product, it has no ability to reflect radiant energy. R-Value
is simply a resistance to heat transfer. Even a very high R-Value doesn’t
stop any type of heat transfer it simply slows it down. You cannot
ignore the need for good R-Values, but by addressing only the R-Value
a large percentage of energy transfer is being ignored. Of the three
types of energy transfer, radiant energy is the greatest source of
heat gain in the summer and heat loss in the winter.
FOR OPTIMUM THERMAL PERFORMANCE YOU NEED AN INSULATION PRODUCT THAT
HAS HIGH R-VALUES AND LOW-E VALUES.
The ability of various materials to reflect
instead of absorbing and emitting the radiant energy is measured by
E-Value. Installed alone LOW-E INSULATION products can outperform up
to 3”- 4” of
fiberglass insulation because they reflect the radiant energy by
having a very Low-E value as well as a significant R-Value.
It would be as serious a mistake to ignore the R-Value requirements
as it would be to ignore insulating to protect just against radiant
energy where very high R-Value are required. That is why you will
find many applications in these guidelines that are combination systems
including LOW-E and a fiberglass product.
INSTALL ESP LOW-E® INSULATION IN YOUR NEXT
PROJECT
Breighner Enterprises. Call us
today for your next project!
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