Roofing Sheets made of Renewable Polycarbonate

SUNTUF® Biobase™ polycarbonate is made from renewable sources, unlike standard thermoplastics which come from non-renewable fossil fuels.

We explore Eco-friendly plastic opportunities. Bio-waste and residue materials are processed into thermoplastic resins. These bio-attributed feedstocks allow us to reduce our carbon footprint and conserve fossil fuels. This is the true meaning of making manufacturing greener.
Biobase sheets have the same physical, mechanical, thermal, optical, weathering, and processing properties as standard polycarbonate products.


SUNTUF Biobase outdoor roofing gives you all the benefits of polycarbonate: durability, rain shelter, and UV protection.

Lightweight & easy
to install

Hail & impact

For every budget
& application

Protects against
UV radiation

100% recyclable

10 years


DIY & home improvement projects are easy with SUNTUF
  • Gazebo roof panels

  • SUNTUF Covered Walkway

  • Residential patio canopy

  • Greenhouse roof cover

  • Pergola roof replacement

  • Carport roof panels

  • Outdoor rain cover

  • Hobby greenhouse roofing

  • Outdoor living protection

  • Swimming pool cover

Colour Swatch

Choose from clear or coloured polycarbonate sheets.
  • Clear

    90% LT | 86% HT

  • Grey

    20% LT | 43% HT


  • Identical Quality & Properties

    Palram BioBase polycarbonate products have the same physical, mechanical, thermal, optical, weathering, and processing properties as conventional Palram polycarbonate products.

  • 100% Certified

    BioBase-certified products support responsible production requirements. Through mass balance, certified products can be attributed to renewable feedstock.

  • Fully Recyclable

    The most environmentally friendly way to dispose of plastic waste is to recycle it. Just like our conventional polycarbonate products, BioBase polycarbonate products are 100% recyclable.

  • Renewable Resources

    BioBase Feedstocks are attributed to renewable hydrocarbons derived from bio-waste and residue. This biomass waste includes secondary use vegetable oil (used cooking oil) and food industry processing waste.


Polycarbonate for Residential Roofing & Home Improvement.
  • How to fasten SUNTUF

    Self-installing SUNTUF is simple: Prepare, position, and fasten.

    Watch video>
  • How to cut SUNTUF

    You can tailor and trim on-site. For quality, professional results, follow these guidelines.

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  • SUNTUF roof pitch

    Calculate your corrugated sheets roof slope to allow proper drainage.

    Watch video>
  • How to store SUNTUF

    To make the most of your investment, here are some tips for storing SUNTUF roofing sheets.

    Watch video>
Project Materials Calculator

Estimate the materials required for a basic patio structure using our corrugated products. Simply fill in a few fields with the appropriate dimensions – we’ll calculate the results.

Calculate now


We use renewable hydrocarbon feedstock to replace fossil-based raw materials. BioBase bio-circular materials are obtained from waste and residue sources. Among these are used vegetable oil, processing wastes, and residues from the food industry.

BioBase sheets provide identical physical, mechanical, thermal, optical, weathering, and processing properties as standard polycarbonate products.

Ready to Get Started with SUNTUF®?

Find a location or distributor near you so that you can get your projected off and running.


Show FAQs
How do I curve the polycarbonate to follow the façade curve?

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 specify the required thickness of the polycarbonate glazing material?

The recommended thickness of the polycarbonate glazing material is based on factors such as wind & snow load, panel size, and boundary conditions. Visit the Palram website for access to calculators that can help you determine the recommended thickness.

How do I reduce the heat build-up coming from the façade into the building?

In order to reduce heat build-up through the façade, Palram strongly recommends the use of its tinted SolarSmart™ panels. SolarSmart™ tints can be implemented in all Palram polycarbonate products. For more information, reference the Palram SolarSmart™ technology page.

What is the minimum allowed bending radius of polycarbonate?

The minimum allowed bending radius of the polycarbonate is 200 times the thickness of the sheet, for example, a 2 mm sheet has a minimum 400 mm bending radius.

How do I install corrugated polycarbonate sheets as a skylight?

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.

If polycarbonate sheets block UV radiation, why is there a “UV-side” that faces outwards?

Polycarbonate sheets block UV radiation by absorbing it. This absorption mechanism can cause degradation to the material, and to prevent this from happening, the sheet is coated with a special material.

For this reason, it is recommended that the sheets are installed with the marked UV protective layer facing outward. Moreover, most of the sheets are only protected on the side that is clearly marked as such.

Why do I have to pre-drill fastener holes in roofing with corrugated panels?

Pre-drilling the holes ensures that the panels have room to expand and contract properly with temperature changes. Skipping this step can lead to distorted, warped or cracked panels.

Will polycarbonate light transmittance deteriorate over time?

PALRAM’s polycarbonate products are shielded with a UV protection layer that guards against photodegradation, yellowing, and brittleness. This protects the sheets from the harmful impact of UV radiation and helps to maintain light transmittance and quality for many years. Our products come with a 10-year warranty against loss of light transmittance. Upon special request, we can provide an enforced UV protection layer with a longer warranty.

How do I determine the color, Light Transmission (LT) and haze properties of polycarbonate?

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.