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Ply-Foil
is a multi layer, reflective insulation which comes in rolls consisting
of a variety of widths and lengths for use in both specialty and
standard construction projects. Two outer layers of aluminum foil
reflect 97% of the radiant heat. Each layer of foil is bonded to
a tough layer of polyethylene for strength. The inner layers of
bubble-pack resist conductive heat flow while a center layer of
polyethylene gives Ply-Foil additional strength. (See Illustration)
Ply-Foil provides nominal 3/16" thick
Single Bubble, nominal 5/16" thick Double Bubble, Standard
Edge and Staple Tab product lines for both Metal and Post Frame
Construction. Perfect for New Construction or Retrofit of existing
structures.
Radiant
energy, the major source of heat flow, is energy in the form of
infrared waves. It travels at the speed of light, even through a
vacuum; and is either transmitted through, absorbed into, or reflected
by any material it contacts. Air, water, and glass, for example,
transmit visible light in varying degrees. A white surface, such
as snow, reflects it; and a black surface absorbs it.
Infrared waves work in the same way as visible
light; heat is generated when its energy is absorbed. Common insulation
products, like most building materials, tend to absorb a large percentage
of the radiant energy they encounter as heat. However, tests have
shown that one sheet of aluminum in the center of an airspace reflects
97% of radiant heat. This means that heat rays pass through it at
a rate of only 3%. Properly installed Ply-Foil takes full advantage
of this by using two or more such surfaces separated by encapsulated
air.
There
are a lot of logical reasons to use Ply-foil, including:
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Plyfoil comes
in large, light weight, easy to handle rolls that will not blow
away or break up in the wind. |
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Installers will like working
with the product because there are no fibers to cause skin itch
or make breathing difficult. |
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Ply-Foil, properly installed
and taped, provides an excellent vapor barrier, assists in limiting
condensation and has shown through testing to offer the top
classification of burn and flame spread ratings. |
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It will not absorb water
if left outside at the job site or if it is left partially uncovered
during installation. |
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It will typically not mildew
or allow fungus growth and it is resistant to mice, birds, and insects.
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Ply-Foil will give an attractive
finished building interior. |
Over the years, Ply-Foil has collected and continues
to collect test data on applications
using its insulation products. The following downloadable document
contains information about applications for post frame and metal
buildings including benefits and installation procedures:
 
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