This twinwall polycarbonate sheet is specifically designed for greenhouse operations that want to hide all external light.
Both sides are opaque black and block 100% of exterior light from entering the constructed enclosure. Both sides of this material come with UV protection that is often required by blackout greenhouses. The black greenhouse effect allows the grower to control all UV and temperature within the structure, and block all exterior light.
Sizes are available in 47.25", 48", 71.25", 72", and 82.67" widths and lengths up to 48'.