The excellent thermal insulation of polycarbonate multi-wall structured sheeting results from the air cells inside the hollow structure of the sheet. It has a much higher insulating ability than single walled, corrugated, or solid flat sheets. It offers lower heat loss (or gain), and therefore - higher energy efficiency. Multi-wall structured sheeting, with its co-extruded UV protective layer, will resist the effects of solar UV radiation.
Polycarbonate multiwall sheets are available in assorted thicknesses. Multiwall sheets of 6mm (1/4") and 10mm (3/8"), are standard thicknesses for patio covers. Our 16mm (5/8") is great for greenhouse applications. 16mm for greenhouse windows has excellent energy values, for early Spring and late Fall gardening. Structured Sheets have exceptional thermal performance values. A 25mm sheet has comparable thermal properties to a triple pane window.
Multiwall sheets are made up of virtually indestructible polycarbonate (GE Lexan resin) substrate. Polycarbonate sheets are economical and light in weight, yet are 10 times stronger than acrylic and 200 times stronger than glass!
Sheet Thickness | 6mm | 10mm | 16mm | 25mm |
---|---|---|---|---|
Structure Type (walls) | twin | twin | triple | five |
Weight (lbs / sq ft) | 0.27 | 0.41 | 0.57 | 0.71 |
Light Trans. (%) Clear | 82 | 80 | 76 | 58 |
Light Trans. (%) Bronze | 50 | 50 | 50 | 27 |
Light Trans. (%) Opal | 40 | 40 | 40 | 24 |