FREQUENTLY ASKED QUESTIONS

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Questions
Are there customized sizes of BULLETPROOF sheets?
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Yes, BULLETPROOF is available in custom sheets of up to four square meters.

Can corrugated sheets be curved?
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Yes. Corrugated sheets can be cold-curved to create arched shapes. It's important to follow the relevant Palram specifications for minimum radius in cold-curving, which can be found in the Installation Instructions of the relevant sheets. In addition, corrugated sheets should be arched so that the corrugations themselves are curved lengthwise.

Can flat solid polycarbonate be installed in a similar manner to glass in curtain wall applications?
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PALSUN can be installed with standard curtain wall aluminum glazing profiles and EPDM gaskets (similar to glass), or spider fixing spaced with approximately 400 mm centers. However, it cannot be used with structural silicone and PALGARD (PALSUN) with anti-scratch coating is the recommended substitute in this case.

Can I cover my old polyethylene greenhouse with polycarbonate while still keeping the old structure?
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Yes, but with minor reinforcements to the structure in order to support the load.

Can I install corrugated PVC and polycarbonate sheets horizontally for siding?
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Yes. Make sure you start installing from the bottom up so the overlaps will not let the water in.

Can I install multiwall polycarbonate sheets horizontally for siding?
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No. The multiwall channels should always be vertical to allow condensation water to drain out by gravity.

Can I retrofit my old glass house with polycarbonate sheets?
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Yes, Palram's MetalMatch technology enables us to create a covering that will fit any existing structure without requiring any additions.

Can I use clear PVC corrugated sheets for skylights?
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Clear corrugated PVC sheets can function as skylights incorporated into metal or other types of roofing. Note that this is only suitable for areas with cold climates.

Can I use multiwall polycarbonate sheets as a skylight combined with a metal roof?
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Yes, you can by using domes or glazing solutions. Please contact Palram technical support for further information.

Can the percentage of light transmission be controlled? I need a lot of light but I need it to be diffused.
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Palram offers various LT% parameters - from 0% to 90%. In addition, we offer a color called a “diffuser” that allows 85% of the light in while diffusing it by 100%. The result is a light-transmitting panel that is not transparent but is highly translucent.

Do Palram’s animal covering and cladding solutions have thermal insulation properties?
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All of Palram's animal covering & cladding solutions have superior thermal insulation properties compared to metal coverings.

How do I clean the polycarbonate?
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  • Never use abrasive or high alkaline cleaners on any Palram polycarbonate products.
  • Do not leave cleaners on Palram polycarbonate for extended periods of time. Rinse immediately with cold, clean water.
  • Do not apply cleaners in direct sunlight.
  • Never use sharp objects, squeegees or razors on polycarbonate.
  • Do not clean with gasoline.
  • Always practice safety first and never step directly on a polycarbonate panel.
  • Always test cleaners in a small inconspicuous area prior to cleaning the entire panel to ensure against adverse results.
  • Avoid allowing the pressure washer spray tip to come too close to the panel. Pressure washers often have enough pressure at the spray tip to penetrate or tear the panel.
  • Avoid dry cleaning as sand and dust particles clinging to the exterior of the panels may scratch the surface.

How do I combine corrugated polycarbonate sheets (SUNTUF) with metal sheets?
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With Palram's MetalMatch technology, we can perfectly match almost any trapezoid industrial metal sheet and install SUNTUF as a homogeneous part of the roof.

How do I create a double skin glazing solution for façades and curtain walls?
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Flat solid or multiwall sheets can be glazed in double skin applications using standard aluminum curtain wall profiles and EPDM gaskets. The SUNPAL system can be installed in a double skin application with a special aluminum profile provided by Palram.

How do I curve the polycarbonate to follow the façade curve?
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All Palram polycarbonate products can be cold bent onsite during installation, subject to a minimum radius. The radius varies based on the chosen product. For flat sheets such as PALSUN & SUNLITE, the rule-of-thumb for the minimum radius is the thickness multiplied by 200. Please check the Palram catalog for more detailed specifications.

How do I design the secondary steel support spacings for roofing/siding?
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Palram created specific loading tables for each product. Please visit our website and download the specific catalog.

How do I determine the color, Light Transmission (LT) and haze properties of polycarbonate?
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This decision depends on the application – some of the colors are transparent and some are translucent. If a see-through material is needed, then haze should be smaller than 1% and the LT% should be based on the illumination design. If a translucent effect is needed, then the haze should be 100% and the LT% based on the chosen color.

How do I handle inkjet printable media before and after printing?
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Before: use a protected sheet with PE masking, store unused inkjet printable media in original packaging and in a clean area, and avoid touching the print side by handling the edges of the sheet or by using lint-free white gloves.

After: avoid any finishing until prints are completely dry, store the printed media in a clean environment, and avoid dust from sticking to the fresh cured ink.

How do I install corrugated polycarbonate sheets as a skylight?
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Corrugated polycarbonate sheets are installed as a homogeneous part of the metal roof. For more information, please review Palram's installation instructions for the desired profile.

How do I install flat solid or multiwall polycarbonate sheets as skylights?
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Flat solid or multiwall polycarbonate sheets need to be installed with designated aluminum profiles when used as a skylight.