$ 92.79
ThermaGlas 4mm twinwall clear polycarbonate, in 2′ x 6′ panels, are perfect for use as replacement panels for hobby greenhouses. These ThermaGlas polycarbonate panels offer 99.5% UV protection. The light weight and shatterproof multiwall design coupled with integrated UV resistant co-extruded layer yields long service periods backed up by a 10 year limited warranty. The cellular multi-layer structure reduces heating costs in winter while minimizing excessive heat in summer. A special coating on the bottom side eliminates condensation dripping. Blocks ultraviolet rays that burn plants and living tissues, and transmits only beneficial radiation. 2′ x 6′ panel 4mm Thickness for double wall 82% light transmission Superb thermal insulation—saves energy 10 year limited warranty against UV degradation Impact resistance—virtually unbreakable Approx. Weight: .16 lbs per sq. ft. Low flammability (available with CC1 rating) R-Factor: 1.49; U-Factor: 0.67