Clear Twinwall Polycarbonate Dome Covers

Clear Twinwall Polycarbonate is ideal for greenhouses and homes needing additional insulation. The same impact resistant polycarbonate, but in a fluted pattern that gives a single or double air layer for insulation. This also makes the material lighter which can help with reducing building weight overall.  Resembling reeded glass, this has a sophisticated look ideal for modern structures.

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  • Impact strength 200 x greater than glass & 8 x greater than acrylic
  • 1/6 the weight of glass & 1/3 the weight of acrylic
  • 100% recyclable
  • Minimum bend radius is 43.75″ for cold-formed arches
  • Use 100% silicone sealant with these panels
  • Maintains properties from -40°F to 248°F

Twinwall Polycarbonate is 20 times stronger than acrylic and retains its physical properties over a greater range of temperatures. This easy-to-handle material is commonly known for being versatile, lightweight, and offering incredible weather and impact resistance – perfect for roofing applications and greenhouse installations.


As a roofing material, it can withstand falling objects, extreme heat and cold, and prolonged exposure to the sun, making it a great choice for clear roofing panels. Polycarbonate has excellent light transmission, but it is able to block harmful UV rays too. This ability can make polycarbonate an ideal choice when installing roofing to your geodesic dome.

Architectural Applications:

An alternative to glass at a lighter weight while being more affordable, polycarbonate multiwall sheets are used primarily for cladding, roofing panels, greenhouse panels, skylights, sheds, and verandas. It's ideal for any application where specific light transmission is required.