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Comparison with Other Insulation Material |
K Values of Different Insulation
Material Available in Pakistan
|
Material
|
Thermal
Conductivity W/MoK
|
Density
Kg/m3
|
| Polyurethane |
0.020 |
32 |
| Polystyrene |
0.037 |
30 |
| Glass
wool |
0.041 |
65~160 |
| Polyethylene |
0.0348 |
32~38 |
1
W/moK = 0.86
K Cal/hoC
Spray
Polyurethane is the High-Tech insulation
material with lowest “K” Value
per thickness of any readily available
insulation material used in residential construction. The K Value
means Thermal Conductivity Value and the
lower it is, the superior
is the insulation material. It is applied by spraying
the material which becomes rigid in less
than a minute. Sprayed-in-place Polyurethane is a self-adhering,
seamless, closed cell foam with excellent compressive strength. It can be tapered to improve
water drainage on an existing roof, eliminating the
detrimental effect of standing water.
The
versatility and performance of a seamless sprayed-in-place Polyurethane
system makes it a practical and economical solution
for many applications. It
provides a seamless weather barrier when utilized as a roofing
system and permits wall insulation.
As self-adhering, light weight seamless insulation,
it does cover a variety of substrates. The direct adhesion to the various component surfaces
(including concrete, wood, metal, plastic,
concentrate and others) creates a monolithic
unit that gains substantial strength.
It forms up to fill cavities completely bonding
the various elements together for
rigidity and stiffness.
The resulting envelope of insulation offers lower K-Value
and air infiltration resistance.
Formed
by reactive components in the presence of other additives,
Seamless Polyurethane foam is a rigid closed
cell insulation. The
superior insulation and air-seal characteristics
provide the owner with a long-term value based
on permanent reduction of cost of energy. Worth over 25 years
of application, this product has been successfully field-proven
time and time again.
As a purchaser, you are making
a sound decision in selecting your
Spray Polyurethane Roof Insulation system.
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