Green-tek Aluminum Tape - 1in x 150ft - For Polycarbonate Sheet Sealing

Green-tek Aluminum Tape - 1in x 150ft - For Polycarbonate Sheet Sealing

Green-tek Aluminum Tape is an essential component for proper polycarbonate sheet installation. Applied to the upper (ridge) ends of twinwall and multiwall polycarbonate panels before installation, it creates a permanent barrier that prevents dust, debris, insects, and moisture from entering the cellular channels. Sealing the top edges correctly with aluminum tape ensures the longevity, clarity, and structural integrity of the polycarbonate installation.

Key Features & Benefits

• Top-edge sealing: Applied to the upper ends of polycarbonate sheets at the ridge to permanently seal channel openings against dust, debris, insects, and moisture intrusion.
• Foil construction: Aluminum foil provides a moisture-impermeable, UV-stable seal that lasts the life of the polycarbonate installation.
• 1in x 150ft roll: Sufficient length for sealing multiple polycarbonate panels in a single roll.
• Essential installation component: Proper top-edge sealing is required for all multiwall polycarbonate installations to maintain long-term performance and clarity.

Who Should Use This

Anyone installing Green-tek ThermaGlas twinwall or multiwall polycarbonate sheets needs this tape for the ridge (top) edge sealing step. Used by greenhouse builders, contractors, and growers performing new construction or re-glazing projects.

Compatibility

Compatible with all Green-tek ThermaGlas 8mm twinwall and triplewall polycarbonate sheets. Always pair with U-Profile or ventilated tape at the bottom (eave) edge to complete the proper sealing system for multiwall polycarbonate installations.

Frequently Asked Questions

Why is it important to seal the top edge of polycarbonate sheets?

The cellular channels in twinwall polycarbonate sheets are open at the cut ends. Without sealing, dust, pollen, insects, and moisture can enter the channels over time, reducing light transmission and potentially damaging the sheet structure. Aluminum tape at the top edge permanently seals these openings to maintain sheet performance for the full installation lifetime.

What goes on the bottom edge?

The bottom edge should be sealed with a ventilated tape or U-Profile that allows any condensation that forms inside the channels to drain out while preventing insects and debris from entering from below. Do not use solid aluminum tape on the bottom edge, as this traps moisture inside the channels.

How do I apply this tape correctly?

Cut the sheet to length, then apply the aluminum tape centered over the open channel ends at the top edge, pressing firmly to ensure full adhesion across all channel openings. Install the sheet with this sealed edge oriented toward the ridge of the greenhouse structure.

Is this tape compatible with all polycarbonate thicknesses?

The 1in width is designed for standard 8mm twinwall polycarbonate. For wider or narrower panel profiles, Green-tek also offers a 2in wide aluminum tape (GRTKE03690) for applications requiring wider coverage.