Choosing
and Comparing Greenhouse Panels
The material
used for the construction of greenhouse is a very significant factor
in terms of heat transfer and heat retains, durability, and the cost.
Maintaining the temperature and warm environment in the greenhouse throughout
the year is not silly as you think. The construction of panel is most
important factor to achieve the required environment.

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The panels are made of glass, PVC, fiberglass, and polycarbonate are
a few of the common and most popular materials today. You have to consider
many factors while selecting the panels. It should transmit the light
energy to inside the greenhouse for the growth of the plant. The material
should be weatherproof and strong to withstand the natural calamities.
Easy installation, heat-retaining capability, durability, economical
and light in weight.
Plastic
panels are commonly used in commercial large scale greenhouses, however
it is not durable and requires frequent replacing.Glass can be a good
choice for paneling due to its very pleasing appearance, easy and reasonable
maintenance. Glass permits large amounts of light rays than all other
paneling materials. The main disadvantage of glass material is that
it will break easily.
The glass
material is heavy and foundation of greenhouse must be stronger to withstand
the heavy glass. The drawback of using glass for paneling is that glass
is a breakable material, initially very expensive to construct, needs
a very strong framing and foundation to support heaviness.
Polycarbonate,
is not attractive as glass, even then it is durable and weather proof.
However, sunlight that passes through this material is slightly less
concentrated ultra violet rays and plants will not be affected by the
ultra violet radiation. For retaining heat, double or even triple polycarbonate
paneling sheets can provide excellently.
Fiberglass
is a strong, lightweight, and essential hail-proof paneling material.
However, you should use good quality fiberglass because the poor grades
can discolor as well as reducing the penetration of light rays. Tedlar-coated
quality of fiberglass is more durable up to 20 years. The resin coating
that the glass fibers have ultimately will wear off and cause for the
dirt and dust deposit on the fibers. So it is necessary to provide a
new resin coating, after about 15 years.
Double-layered
rigid plastic paneling sheets of polycarbonate and acrylic are available,
which is heat-saving and long-life, covers. The acrylic paneling is
a long lasting, does not discolor; however, the polycarbonate generally
turns yellow faster, yet typically is shielded by a "UV-inhibitor"
covering on the surface that is exposed to sun and rain. Both paneling
do carry warranties on light transmission characteristics for up to10
years. Both are ideal for curved surfaces, especially the polycarbonate
is the most bendable paneling material

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