Residential and DIY Multiwall & Twinwall Polycarbonate Roofing Sheets

Upgrade your outdoor living space with SUNLITE®, a sleek, tough, and aesthetically appealing multiwall polycarbonate sheet for home improvement projects. While the outside surface offers the smooth, clean lines of a flat sheet, the multiwall cellular structure creates an insulating air space that dramatically increases its insulation properties.

SUNLITE® is easy to install and handle for any remodeling project. A dream solution for clear patio roofs, privacy partitions, DIY skylights, covered pergolas, covered carports, hobby greenhouses, and more.


SUNLITE DIY 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

Balance shade
& daylight

10 years

SUNLITE® DIY Twinwall Greenhouse Glazing


DIY & home improvement projects are easy with SUNLITE DIY
  • Multiwall Greenhouse Glazing

  • Residential Patio Canopy

  • Patio Roof Cover

  •  Polycarbonate Covered Pergola

  • Polycarbonate Pool Covers

Colour Swatch

Choose from a variety of clear or coloured polycarbonate sheets.
  • Clear

    80% LT | 80% HT

  • Grey

    20% LT | 42% HT

  • White Opal

    30% LT | 47% HT

  • Bronze

    35% LT | 64% HT

  • Solar Control Grey

    25% LT | 41% HT

  • Solar Ice

    20% LT | 40% HT


Polycarbonate for Residential Roofing & Home Improvement.
  • How to Calculate a Roof Slope to Enable Proper Drainage

    Learn the professional way to do it.

    Watch video>


SUNLITE® DIY polycarbonate multiwall sheets come in a wide range of colours, thicknesses, and structures. Choose the best home improvement materials that best meet the needs of your project.
SUNLITE® DIY 10mm twin wall polycarbonate sheets are UV protected and combine flexibility with lightweight. Perfect for DIY skylights, and DIY roofing.

SUNLITE® DIY triple wall polycarbonate sheets provide superior thermal insulation and a more robust structural design. Polycarbonate triple wall sheets offer superior performance under heavy loads.

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

Ready to Get Started?

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.

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.

What is the difference between multiwall and solid polycarbonate?

Multiwall is a multi-cell structured sheet. Due to its multi-cell structure, it has superior thermal insulation and low area weight.

Can I install multiwall polycarbonate sheets horizontally for siding?

No. The multiwall channels should always be vertical to allow condensation water to drain out by gravity.

How do I clean the polycarbonate?
  • 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.