Polycarbonate Twin Wall
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Polycarbonate Twin Wall Sheets
Twin wall polycarbonate is a double-layered sheet with hollow channels running between the two surfaces. At KASTLITE, we carry twin wall panels for applications where you need both light transmission and thermal insulation. The air channels between layers act as an insulating barrier, similar to double-pane windows but at a fraction of the weight and cost.
I sell twin wall sheets to greenhouse builders, patio cover installers, skylights fabricators, and anyone who needs a translucent panel that keeps heat transfer low. The material is about 200 times stronger than glass on impact, so hail, falling branches, and accidental contact will not shatter it.
Common Applications
Greenhouse panels are the most popular use. The twin wall structure diffuses sunlight, which actually benefits plant growth by reducing harsh shadows. Patio roofing is the second most common application. You get covered outdoor space with natural daylight passing through, and the insulating layer keeps the space cooler than a single-wall panel would.
We carry twin wall panels in clear and opal tints. For single-layer polycarbonate options, see our polycarbonate sheets collection. If you need a different plastic material entirely, our plastic sheets page covers acrylic, PVC, ABS, and more. Contact us for custom sizing and bulk pricing from our Clearwater, FL facility.