greenhouse roofing material, twin wall polycarbonate hollow sheets

Product Description

Specifications for PC hollow sheet
1)Thickness:3.5mm，3.7mm，3.8mm，4mm，5mm，5.5mm，6mm，7mm，7.5mm，8mm，8.9mm，9mm，9.2mm，*0mm.

2)Maxwidth:***0mm.

3)Length:   NO limited.

4) Standard size (width x length x thickness):

a) ***0×***0×4mm

b) ***0×***0×6mm

c) ***0×***0×8mm

d) ***0×***0×*0mm

5)Non-standard sizes and special colors are available according to customers' requests

Characteristics:

Light transmission  Maximum *6%

Weight            Light, only 1/*5 of glass at the same thickness

Impact resistance   *0mm twin-wall panel can stand **0J impact energy

Cold-bent          The safety radius of curvature is over **5 times of its thickness.

Sound insulation    The internal hollow structure can reduce noise greatly.

Dew-proof         The board can't be dewed if the indoor relative humidity is below *0%.

Energy-saving      Low heat transfer coefficient K-value and good thermal insulation

UV-protection      The board coated with high-density ultraviolet absorbent

Flame retardancy   Flame retardancy Class B1 in accord with GB********7

Applications:

1) Roofing for swimming pool,shopping malls,commercial streets.

2) Sunshade for stadiums and bus stops,gazebo,open-air carport.

3) Lighting canopy for corridors,passages and subway entries.

4) Flashing for bank ATMs,telephone box,gateways,garages.

5) Sound and heat insulation wall for expressways and houses.

6) Heat preservation material for agricultural greenhouse,flower greenhouse.

7) Soundproof material for partitions.