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Home    Products    Flat Sheets    THERMAGLAS™ Family of Products    THERMAGLAS™ Plus

THERMAGLAS™ Plus

Multiwall Polycarbonate for Commercial Greenhouse Applications

ThermaGlas™ Plus products are designed and engineered specifically for commercial greenhouse use. Most ThermaGlas products are available in 4-foot or 6-foot widths in clear, or with specially formulated pigmentations. ThermaGlas Plus offers 99.5% UV protection.

Main Benefits
  • Superb thermal insulation—saves energy
  • Built in condensation control
  • Impact resistance—virtually unbreakable
  • Light weight
  • Weather and UV resistant
  • Low flammability (available with CC1 rating)
  • Easy to work with and install using ordinary tools
  • Rigid, yet capable of cold-forming to an arch
  • Wide service temperature range
  • 10-year limited warranty
  • Available in 47-1/4" , 48" , 71-1/4" and 72" widths
Typical ApplicationsPrimary Applications:
  • Commercial greenhouses
  • Retail garden centers
  • Packing & holding areas

Secondary Applications:
  • Skylights and sidelights
  • Signs and displays
  • Covered walkways
  • Industrial roofing & glazing
  • Swimming pools
Other InformationPalram relies exclusively on its master distibution partner and converter, Green-Tek to manage all facets of the ThermaGlas product line, including marketing, sales, warehousing, cutting, and logistics for full-size master-length sheets.

In turn, the ThermaGlas family of products are sold through commercial greenhouse distributors and greenhouse manufacturers.

Outside of North America, ThermaGlas Plus is sold under the brand name "Sunlite Plus."

Why do I have to predrill fastener holes?
Predrilling the holes insures the panels will have room to expand and contract properly with temperature change. Skipping this step can lead to distorted or warped panels. Please be sure to read the installation instructions located on the specific product's document page.
How do I cut these panels?
Corrugated and Multi-wall panels may be cut with a circular saw (using a very fine-toothed blade for plastic panels, veneer, or plywood). For best results, it is often better to cut a few corrugated panels at a time to reduce vibration; clamping the panels also helps. Also, if using a standard circular saw blade, better results may be seen by running the blade backwards (turn it over to reverse direction). Panels may also be cut by hand by carefully using tin snips or a utility knife. For other cutting instructions and further details, please visit each product's document page. You can also view our general Corrugated Products Installation Overview video.
I'd like to build a greenhouse. What are my options?
With Palram, there are several options. For hobbyist and homeowners our sister company, Palram Applications, offer easy-to-assemble greenhouse kits. Palram Applications products are available through many online resellers, and select retail garden centers throughout North America.

If you plan to design and build your own structure for your home, consider our Suntuf corrugated polycarbonate panels. Our Sunlite multi-wall panels are available in select markets as well. Suntuf is widely available at Home Depot's throughout North America, as well as many indepent retailers. Sunlite is available at select Home Depot's and some independent retailers.

For commercial applications, our DynaGlas and ThermaGlas panels are a great choice. DynaGlas and ThermaGlas are available from Commercial Greenhouse Manufacturers and Greenhouse Supply Distributors. Contact our Master Distributor, Green-Tek, for a Dealer near you.

Feel free to contact us with your specific needs and we'll help you make the best decision for your application.
Do Palram products keep the "heat" out?
Palram products are available in a variety of colors (varies by product), each with its own heat and light transmission properties. While all Palram panels block virtually 100% of harmful UV radiation, there are variations in heat and light transmission.

Clear panels allow most solar light and heat through while lighter, opaque colors are more reflective. If excessive heat buildup is a concern, our "Solar Control" panels are you're best bet. Please see each product page for more information on color offerings, light transmission percentages and warranty terms.
How long do the panels last?
Palram manufactures a variety of different products for different applications. Most have industry-leading warranties against manufacture-related defects, as well as specific warranties related to the intended use for the product. However, with proper installation and maintenance, we expect our products to far exceed the warranty periods.

Many of our products are engineered to be installed outdoors and are warranted accordingly. Nevertheless, the lifespan of outdoor products can be affected by how well they were installed, as well as environmental factors like air pollution, winds, and erosion by sand particles.

Warranty details can be found in the Downloads tab under the Warranties section at the bottom of the page for each individual product.
Is there a paint that is appropriate for polycarbonate?
Unfortunately we can’t recommend painting our panels. While polycarbonate is a very resilient material, it is potentially sensitive to chemicals contained in many exterior paints. While we can test a paint for compatibility, we have no way of controlling whether a paint manufacturer will remain consistent with their formulas over time.
My building inspector says I need to know your flame spread rating. Can you provide this information?
Yes. We can provide test reports and other such documents. Please contact your Palram Dealer if you require these data, or Contact Us. This is technical data and is not to be considered a warranty.
Is it OK to screw in fasteners using a power screwdriver or screw gun?
Adjustable electric screwdriver is allowed, provided you set the torque to the minimal needed, in order to prevent over-tightening and local deformation of the panel. For that reason, pneumatic tools should be avoided.
Is it OK to walk over roofing sheets while in storage, during or after installation?
No. In case it can’t be avoided during installation. It's recommended to use a crawl board that is strong enough to support the weight of the person, and that spans at least three purlins or supporting members.
THERMAGLAS™ Plus
ThermaGlas 8mm Triple-Wall Polycarbonate used to cover a Retail Garden Center.
THERMAGLAS™ Plus
ThermaGlas 8mm Triple-Wall Polycarbonate used to cover a Retail Garden Center.
THERMAGLAS™ Plus
ThermaGlas 8mm Triple-Wall Polycarbonate used to cover a Retail Garden Center.
THERMAGLAS™ Plus
ThermaGlas 8mm Triple-Wall Polycarbonate used to cover a Retail Garden Center.
THERMAGLAS™ Plus
ThermaGlas 8mm Triple-Wall Polycarbonate used to cover a Retail Garden Center.