Polycarbonate in commercial use
Polycarbonate is an outstanding
replacement product for glass and
poly covered greenhouses.
Retrofit assistance provided.

Polycarbonate cover for bus stop

Specifications of Style

USGR offers polycarbonate coverings for all types of applications such as greenhouse, institutions, research facilities and retail greenhouses. Agricultural research has shown that both crops with a high plant canopy and ornamental plants with a small canopy can utilize diffused light better than direct light. Our 8mm Polymatte™ sheets provide 77%light transmission and 100%light diffusion which create opti­mal light conditions for enhanced plant growth.

We have supplied polycarbonates from factories around the world to cleats in all industries – and in quantity from small units to many thousands of square feet. Greenhouse is a major user of the product but other recent contracts have been:

  1. High impact product for train locomotive windows
  2. Skylights for resort and industrial uses
  3. Large aquarium installation
  4. Large patio covering
  5. Walkways
  6. Sheet material for diverse uses
  7. Insulating and lining panels
  8. Greenhouse polycarbonate covers
  9. Nurseries
  10. Hobby Greenhouses
  11. Commercial Greenhouses
  12. Institutional Research Greenhouses
  13. Agricultural and Low-Tech Greenhouses
  14. Aquaculture Facilities
  15. Biomass Growing Houses



Applying twin wall to roof of structure





Now the better option for for efficient greenhouse coverings is the tough, new corrugated Polycarbonate sheets that have many commercial and industrial applications. Polycarbonate sheets are very popular in greenhouses of all types.

Our Multi Wall sheet & profile connectors are the innovative building material used in sports arenas, greenhouses, hurricane shutters, bus shelters, car ports, sunrooms, covered walkways, partition walls, facades, and roofing. Whether you want to keep the heat out in summer, or keep the heat in for winter, USGR Multi Wall sheet is the leader in structured polycarbonate.

These Polycarbonate panels offer the design flexibility, easy installation and economy without premature surface deterioration or loss of light transmission. With service life years longer than polyethylene or fiberglass wall, and more economical than glass, Polymatte, Twin Wall, Multi Wall and Corrugated polycarbonate sheet fills an important cost/performance niche in rigid coverings.

Check These Outstanding Features.

  • Excellent insulation
  • Controlled daylight transmission
  • Virtually unbreakable
  • Flexible and easy to install
  • Flame retardant
  • Lightweight
  • UV-blocking
  • Environmentally friendly
  • Available in polished and matte clear, as well as tints.
  • Made in U.S.A.
  • For high light greenhouse use
  • Special greenhouse panels for light transmission.



Impact Strength

Our multi wall sheets are constructed from multiple layers of polycarbonate for maximum strength, with an internal cellular structure that makes them light and flexible.

Please see our corrugated polycarbonate sheets specifications page for technical details.

Corrugated polycarbonate house
Typical Corrugated Installation
Note width of corrugation. Example shown is Greca configuration which is modified corrugation and
definitely the most popular.
LEXAN® corrugated material is an extruded polycarbonate sheet which offers impact strength, high light transmission, long-term weatherability, and ease of installation. LEXAN corrugated sheet offers an economical, long term option for plant protection and is backed by a ten-year warranty against discoloration and loss of light transmission and a five-year warranty against hail damage. (Warranty specifications available upon request.)


Twin wall Polycarbonate Triple
Wall is available.

GE Twin wall offers the highest quality Polycarbonate in the broadest range of types. These are high strength sheet materials with high light transmission and are extremely energy efficient (up to 50% energy savings). Excellent impact-resistant characteristics. The industry’s best warranty – it is GE, of course – a full 10 year warranty. The material is cut to length. Drip guards help prevent condensation water from dripping on crops. All types of aluminum or Polycarbonate extrusions for sidewalls, end walls, roof, etc.

Excellent uses and cost effective applications for:

  • Greenhouses
  • Skylights
  • Covered walkways
  • Sun rooms
  • Canopies
  • Retail outlets
  • Industrial applications
  • Greenhouses/Nurseries

Contact us for various designs and options.

Please see our multiwall polycarbonate sheets specifications page for technical details.


It is always best to put permanent material in ends of houses because
It is extremely difficult to form poly around equipment.
Also great For sidewalls on Quonsetter, Quality Plus, Ventsetter, etc.
where you Have a 4 ft plus wall.


Twinall polycarbonate

LEXAN® DRIPGARD® material is a double walled extruded polycarbonate sheet offering thermal insulation, impact strength, high light transmission, long-term weatherability and lightweight – plus
added resistance to condensate build-up.

LEXAN® DRIPGARD® sheet is backed by a ten-year warranty against discoloration and loss of light transmission and a five-year warranty against hail damage. (Warranty specifications available upon request.)

  • Standard Anti-Condensate feature
  • 71-1/4″ wide sheets provide 6′ coverage
  • .266 lbs. per square foot for 6 mm
  • .35 lbs. per square foot for 8 mm
  • Lengths cut to size up to 48′ long.
  • Available in white, bronze, and smoked grey, for an additional charge. Please contact us for more details

Typical Twin Wall Extrusions and Accessories

Twin wall extrusions and accessories

#10-16 x 3/4″ Tek Screw w/ Double Washer corrugated to steel S9970055
410-16 x 1-1/4″ Tek Screw w/ Double Washer corrugated to wood S9970013
410-16 x 1-1/4″ Tek Screw w/ 7/8″ Washer twinwall S9970017
410-16 x3/4″ Tek Screw w/ 7/8″ Washer w/ lap fastener S9970014
410 x 3/4′ Tek Screw , w/o Washer w/ A9970350 S9970010
Aluminum Nails #10 x 1-1/4″ w/ Washer wood frame N9970020
Sq. Closure Strip for Twinwall Polycarbonate. vertical areas C9970355
Grooved Sq. Closure Strip for Twinwall Polycarbonate. horizontal areas C9970365
Twinwall Glazing Bar Base 24′ Long (6 lbs.) w/ S9970010 A9970350
Twinwall Glazing Bar Cap 24′ Long (3.9 lbs.) w/ S9970043 A0070355
Screw Type “A” #10 x 12″, w/o Washer w/ A9970355 S9970043
Twinwall Panel End Cap 12′ Long (3.5 lbs.) w/ S9970010 A0070361
Tape for top of sheet 1″ Wide x 150′ Long Top T9970010
Tape for bottom of sheet 1″ Wide x 150′ Long Bottom T9970020
Spacer (4 per girt run in 6′ width) – with adhesive back w/ S9970017 W9970300


Installing Twin wall Polycarbonate on Your Greenhouse.

Taking care of some simple techniques will make your projects successful.

  1. Always install the sheets with the flutes oriented vertically. When
    used as a roof covering, design with at least a 5 degree slope, never
  2. Remember to allow for expansion and contraction in every installation.
    Bronze and Gray panels change more in size. Use extrusions that allow
    for sufficient edge engagement plus the expansion allowance.
  3. Panels can be cut with protective masking in place with a fine tooth
    saw or a sharp knife. Remember to remove the masking prior to final
    fixing in place. Chips from cutting should be blown out of the flutes.
  4. The specially treated weather side is identified on the masking. This
    side must always face the exterior.
  5. In vertical installations, the top flutes should be capped with an
    extrusion or tape and the bottom left open for drainage. Vented tape
    can be used on the bottom.

Storage of Panels

The sheets should be stacked on a solid flat surface. Store out of direct
sun to avoid accumulated heat effects. Cover for protection. Never use flexible
vinyl sheets as a cover as the plasticizes may react with the Polycarbonate.

Chemical Resistance

The following are considered safe:

  • Acetic Acid
  • Antimony Chloride
  • Butane
  • Calcium Hypochloride
  • Carbon Monoxide
  • Copper Sulphate
  • Ethylene Glycol
  • Hydrochloric Acid – 20 %
  • Hydrofluoric Acid – 5%
  • Oxygen
  • Sulphur
  • Water
  • Ammonium Chloride
  • Borax in Water
  • Calcium Chloride
  • Carbon Dioxide
  • Citric Acid – 10%
  • Ethyl Alcohol – 95%
  • Formalin – 10%]
  • Methane
  • Mercury
  • Ozone
  • Urea

The following require caution:

  • Cyclohexane
  • Formic Acid
  • Heating Fuel
  • Perchloric Acid – Conce
  • Sulphur Dioxide
  • Diesel Oil
  • Glycerine
  • Jet Fuel
  • Gasoline
  • Turpentine

The following will attack Polycarbonate:

  • Acetone
  • Ammonia
  • Benzene
  • Buty Acetate
  • Dimethly Formamide
  • Hydrochloric Acid-Conc
  • Hydorfluoric Acid-Conc
  • Methyl Ethyl Ketone
  • Perchloroethylene
  • Toluol
  • Sulphuric Acid – Conc.
  • Acrylonitrile
  • Amyl Acetate
  • Bromine
  • Chloroform
  • Caustic Soda
  • Ether
  • Iodine
  • Methanol
  • Styrene
  • Xylene

Attaching materials are for all conditions.
Special attachments required for greenhouse and nursery.

Important ordering information:

  • Standard maximum length: 24 ft.
  • Special orders up to 39 ft 6 inches available — 90 days delivery. High minimum order for unusual applications; generally not recommended.
  • Sinus, Arch and Wave configurations popular in international market High minimum orders. 90 day delivery.
  • Minimum of 6 panels per length.
  • Minimum order 400 square feet or $500, whichever is
  • Skid charges depend upon length and width of panels; minimum $125.