Greenhouse Light Transmission: Acrylic vs. Polycarbonate
Though the videos date themselves, the tests conducted in them are perhaps more relevant today than when they were originally filmed.
Our dual pane Therma-Truss® construction uses UV stabilized; impact resistant DR acrylic which resists discoloration and deterioration for up to 20 years. It incorporates a smooth outer layer and corrugated inner layer as shown in the diagram at right. Light is diffused evenly throughout the greenhouse by the corrugations while still allowing 92% of solar radiation to pass through.
This design is what started it all 35 years ago, and is what truly sets a Sunglo apart from all the rest today. In an industry overrun with flimsy, snap together polycarbonate greenhouses, you can take solace in knowing that somebody still considers American made quality to be more important than outsourcing overseas to improve the bottom line.