Green-tek ThermaGlas Triplewall Polycarbonate Sheet - 8mm - 71.25in x 16ft - Clear

Green-tek ThermaGlas Triplewall Polycarbonate Sheet - 8mm - 71.25in x 16ft - Clear

Green-tek ThermaGlas Triplewall Polycarbonate Sheet offers superior thermal insulation for commercial greenhouse applications requiring enhanced energy efficiency. The three-wall cellular structure provides a second insulating air channel compared to twinwall, enhancing heat retention in winter and reducing heat buildup in summer. The UV-resistant co-extruded outer layer, condensate-control underside coating, and shatterproof polycarbonate construction deliver long-service-life performance in demanding greenhouse environments.

Key Features & Benefits

• Triplewall three-layer cellular structure: Two insulating air channels provide superior thermal performance compared to twinwall panels - reducing heat loss in winter and minimizing solar heat gain in summer.
• UV-resistant co-extruded layer: Factory-bonded UV-protective coating on the outer surface blocks solar UV radiation to prevent sheet yellowing and extend service life.
• Condensate control underside coating: Specialized coating spreads condensation into a thin draining film rather than allowing drips onto crops - maintaining plant health and reducing disease pressure.
• Shatterproof polycarbonate: Impact resistant in hail, wind, and accidental impacts - far safer and more durable than glass in commercial greenhouse applications.
• 71.25in x 16ft panel: Standard commercial width designed to fit common greenhouse bay spans efficiently.
• Clear glazing: Maximizes light transmission for strong plant growth and photosynthesis through the growing season.

Who Should Use This

ThermaGlas Triplewall is the preferred choice for growers and greenhouse builders who prioritize maximum thermal efficiency in their glazing selection. The additional insulating wall makes it especially valuable in colder climates where heating costs are a significant operational expense, or in any application where the improved R-value of triplewall justifies the modest additional cost over twinwall panels.

Compatibility

Compatible with standard 8mm polycarbonate glazing accessories including Green-tek U-Profile end caps and H-Profile joining channels. Install with channels oriented vertically (ridge to eave) for proper condensate drainage. Seal top edges with Green-tek Aluminum Tape and bottom edges with ventilated U-Profile or foam closure strips.

Frequently Asked Questions

How does triplewall compare to twinwall polycarbonate?

Triplewall has three layers of polycarbonate with two insulating air channels, compared to twinwall's two layers and one air channel. This additional wall provides a lower U-value (better thermal insulation), resulting in reduced heat loss through the glazing. The trade-off is a slight reduction in light transmission due to the additional internal structure. Triplewall is the preferred choice where maximum energy efficiency is a priority.

What direction should the channels run during installation?

Triplewall sheets must be installed with the channels oriented vertically from ridge to eave. Horizontal channel orientation traps condensation inside the cells, promoting algae growth and reducing light transmission over time. Vertical orientation allows condensate to drain freely from the bottom edge.

What accessories are required for a complete installation?

A standard installation requires Green-tek Aluminum Tape for the top (ridge) edges, ventilated U-Profile or foam closure strips for the bottom edges, and H-Profile joining channels where sheets meet. Use appropriate sealant and gasket systems at structural connections to complete the weatherproof envelope.

Can triplewall sheets be cut on site?

Yes. ThermaGlas triplewall can be cut to custom lengths using a fine-tooth circular saw or a sharp utility knife guided by a straightedge. Cut with the protective film in place and blow out the channels after cutting to remove any debris before sealing the edges.