arched roof greenhouse
DYNAGLAS SOLAR SOFT MAX
exterior greenhouse
DYNAGLAS SOLAR SOFT MAX

DynaGlas® SolarSoft™ Max

Highest daily light integral (DLI) & guaranteed condensate control for horticultural applications

DYNAGLAS SolarSoft Max is a revolutionary breakthrough in the horticultural industry. It is the first corrugated polycarbonate greenhouse covering to be tested for hemispherical light transmission by world-renowned Wageningen University and Research Center.

 

Compared to flat coverings, DYNAGLAS SolarSoft Max’s Greca style corrugation allows excellent light transmittance at low sun angles, while maintaining hemispherical light transmittance up to 78 percent. Combining this corrugation with a unique proprietary formulation allows the DYNAGLAS SolarSoft Max sheet to provide 90 percent light dispersion while maintaining 90 percent light transmission. This results in a deeper penetration of light that is evenly dispersed into the plant canopy, ensuring consistent growth for your crops.

AgricultureAgriculture

More Light, More Evenly Dispersed

Highest DLI Value of Any Diffused Polycarbonate Sheet In the Industry

DynaGlas SolarSoft Max's white color allows for maximum light transmission while eliminating shadows and reducing unwanted solar heat gain. As light transmits through the sheet, the SolarSoft special pigments diffuse the light so that it spreads in many directions. This allows more evenly dispersed light throughout the greenhouse and less stress caused by direct sunlight, resulting in an ideal growth environment.

Read more about how to achieve optimal DLI in your greenhouse in this Tech Brief.

Highest DLI Value of Any Diffused Polycarbonate Sheet In the Industry

Product Details

Dimensions

ImageProfileWidth (inches)Thickness (inches)
Greca 7649.6", 73.6"0.032"

Available colors, light transmission, & diffusion (haze)

ColorsLight TransmissionLight Diffusion (Haze)
SolarSoft 8585%100%
SolarSoft 9090%40%
SolarSoft Max90%90%

Physical Properties

Property Conditions
(U.S. Customary)
ASTM Method Units - SI
(U.S. Customary)
Value
(U.S. Customary)
Physical
Density D-1505g/cm³ (lb/ft³)1.2 (75)
Water Absorption 24 hr. @ 23°C D-570 % 0.15
Mechanical
Tensile strength at yield 10 mm/min (0.4 in./min) D-638 MPa (psi) 62 (9,000)
Tensile strength at break 10 mm/min (0.4 in./min) D-638 MPa (psi) 65 (9,500)
Elongation at yield 10 mm/min (0.4 in./min) D-638 % 6
Elongation at break 10 mm/min (0.4 in./min) D-638 % 110
Tensile Modulus of Elasticity 10 mm/min (0.4 in. /min) D-638 MPa (psi) 2,378 (345,000)
Flexural Modulus 1.3 mm/min (0.05 in./min) D-790 MPa (psi) 2,378 (345,000)
Flexural Strength at Yield 1.3 mm/min (0.05 in./min) D-790 MPa (psi) 93 (13,500)
Notch Impact Strength Izod 23°C (73°F) D-256 J/m (ft·lbf/in.) 800 (15)
Notch Impact Strength Charpy 23°C (73°F) D-256 J/m (ft·lbf/in) 800 (15)
Impact Falling Weight 3 mm (0.12 in.) Sheet ISO-6603/1b J (ft·lbf) 158 (117)
Rockwell Hardness D-785 R scale / M scale 125 / 70
Abrasion (Taber Process)100 Cycles, CS-10S Wheel, 500gD-1044% HazeN/A
Compressive Strength1.3 mm/min (.05 in./min)D-695MPa (psi) N/A
Compressive Modulus1.3 mm/min (.05 in./min)D-695MPa (psi) N/A
Shear strength at Yield1.3 mm/min (.05 in./min)D-732MPa (psi) N/A
Shear strength at Break1.3 mm/min (.05 in./min)D-732MPa (psi) N/A
Shear Modulus1.3 mm/min (.05 in./min)D-732MPa (psi) N/A
Thermal
Long Term Service Temperature °C (°F) -40 to +100 (-40 to +212)
Short Term Service Temperature °C (°F) -40 to +120 (-40 to +250)
Heat Deflection Temperature Load: 1.82 Mpa (264 psi) D-648 °C (°F) 132 (270)
Vicat Softening Temperature Load: 1 kg (2.2 lb) D-1525 °C (°F) 150 (300)
Coefficient of Linear
Thermal Expansion
D-696 10-5/°C (10-5/°F) 6.5 (3.6)
Thermal Conductivity C-177 W/m°K (Btu-in./hr-ft2-°F) 0.21 (1.46)
Specific Heat Capacity C-351 kJ/kg°K (Btu/lb°F) 1.26 (0.31)
Optical
Haze .8 mm (0.03 in.)
Clear Sheet
D-1003 % <1
Light Transmission .8 mm (0.03 in.)
Clear Sheet
D-1003 % 90
Refractive Index Clear Sheet D-542 1.59
Yellowness Index .8 mm (0.03 in.)
Clear Sheet
D-1925 <1
Electrical
Dielectric Constant 50 Hz D-150 3
1 MHz D-150 2.9
Dissipation Factor 50 Hz D-150 0.9
1 MHz D-150 11
Dielectric Strength Short Time 500 V/s D-149 kV/mm (V/mil) >30 (>770)
Surface Resistance Ketley D-257 Ohm 5.1x10^15
Volume Resistance Ketley D-257 Ohm-cm1.3x10^17

Regulatory Code Compliance Certification

OrganizationStandardClassification
NRC-CNRCCanadian NBC 2015 (Canopy Covering)CCMC Evaluation Report 13450-R
Miami Dade CountyFBC 2017 (Canopy Covering)NOA # 18-0328.03
ICC (International Code Council)IBC 2015 (Light Transmitting Plastics)ESR-1893
City of Los AngelesLABC 2017 (Light Transmitting Plastics)RR 25298

WHERE TO BUY?

GREEN-TEK: Palram Master Distributor

 

Palram relies on its master distribution partner and converter, Green-Tek to manage all facets of the DYNAGLAS product line, including marketing, sales, warehousing, cutting, and logistics for full-size master-length sheets.

3708 Enterprise Drive Toll Free: 800.747.6440
Janesville, WI 53546 Local: 608.754.7336
WHERE TO BUY?

Frequently Asked Questions

What considerations are there for fastening Palram products to ACQ treated lumber?
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The new guidelines by manufacturers of ACQ lumber call for heavily galvanized or stainless steel fasteners due to the corrosive nature of the ACQ treatment.

You have two basic options for using Palram products with ACQ lumber:

  1. Use a comparable fastener made from an ACQ approved material. Make sure that such a fastener uses either a neoprene or EPDM washer, and that it is installed per Palram’s recommendations.
  2. Use Palram’s fasteners. Initial tests with ACQ have shown no adverse effect on our fasteners. This is added to the fact that the fasteners are being used to secure a light weight plastic panel (rather than connect structural members). If you use Palram fasteners, our 10 year warranty will still apply.

What is the difference between DynaGlas and Suntuf?
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DynaGlas branded products are engineered specifically for commercial greenhouse applications. Panel widths, thicknesses, pigments, and special greenhouse-specific features (such as guaranteed condensate control) are consistent with commercial growers' needs.

Aside from commercial greenhouse-specific features, DynaGlas is the same as Suntuf (for equal thicknesses, weights, corrugation profiles, and panel widths). Outside of North America, Palram uses the Suntuf brand instead of DynaGlas.

Can I paint structural rafters before installing Palram roofing sheets?
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Yes, you can paint structural rafters or supports – but be sure to paint only with light or white color. Do not use dark colors like black or brown that can absorb and reflect intense heat.

Why do some polycarbonate sheets have a "UV side" to face outwards?
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Most Palram polycarbonate products feature a very thin co-extruded layer of UV-resistant resins that protect the entire sheet from UV radiation. In most cases, UV protection is applied to one side. However, two-sided UV protection is available for select products.

Polycarbonate inherently blocks UV radiation by absorbing it and not allowing it to pass through the panel. However, UV also degrades polycarbonate over time. Therefore, Palram adds additional UV protection specifically to protect the sheet, not to block additional UV from getting through the sheet.

To ensure the protection of single-sided UV protected sheets, they must be installed with the marked UV protective layer facing out toward the sun. Although sheet products can also be UV protected on both sides, most of the sheets are protected on one side that is marked clearly.

Do Palram roofing sheets block UV radiation?
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Some of them do. Rigid PVC and polycarbonate sheets are practically opaque to UV radiation, making them a perfect barrier against this harmful radiation. They actually block UV-A and UV-B radiation better than nearly any sunscreen lotion.

On the other hand, acrylic roofing sheets (which are not produced by Palram) generally transmit a considerable portion of the UV radiation.

Review the technical datasheet for each Palram product for specific UV information.

What is the purpose of the protective polyethylene films on certain sheets?
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The protective films in flat (non-corrugated) Palram sheets are for protection against dirt and scratching during the long journey from manufacturing to the job site. In some cases, the film also carries important installation and other product information.

The film will also indicate which side is UV-protected. This side should be installed facing outwards (extremely important).

In most cases, we recommend peeling off the protective films after installation. If this is not possible for practical reasons, always mark the UV protected surface, if there is one, so that the sheet will not be installed upside down.

Important note: The protective films that cover Palram sheets are highly sensitive to heat and direct sunlight. Excessive heat and direct sunlight before taking off the film can cause gluing of that film to the sheet surface, after which it will be extremely difficult to remove it from the sheet.

Can I walk over roofing sheets while in storage or during/after installation?
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Under no circumstances should you walk, stand or kneel directly on roofing sheets! The risk of breaking the sheets and falling is too great.

If you can't avoid accessing the roof area during installation, always use a crawl board that is strong enough to support the weight of the person. The crawl board must span at least three supporting roof rafters or purlins.

When roofing with corrugated panels, should I insert screws in the "valley" or at the "crest" of the corrugation?
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Crest fastening is almost always preferred, but some of our corrugated products do require fastening in the corrugation valley. See the individual installation guide for each product to see specific instructions.

When roofing with corrugated panels, where should I start?
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It depends mostly on access to your roof. You can choose to install left to right, or right to left, or start at the middle and continue to both sides.

However, never start at both sides toward the middle, or at any two separate points.

Most importantly – always overlap the panels in such a way so that the wind cannot get under the ends of the panel. This can cause "uplift" and, depending on wind speed, can actually pull the panels off the roof.

Can I paint polycarbonate panels?
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We do not recommend painting our polycarbonate panels. Polycarbonate is a very resilient material, but 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.

Do Palram panels keep out heat?
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Palram products are available in a variety of colors, which varies by product. Each has 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 the 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 your best bet. Please see each product page for more information on color offerings, light transmission percentages and warranty terms.

How do I cut Palram's rigid PVC or polycarbonate panels?
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Corrugated and multiwall panels may be cut with a circular saw (using a very fine-toothed blade made for plastic panels, veneer or plywood). For best results, it is often better to cut just a few corrugated panels at a time to reduce vibration. Clamping the panels also helps. (But be careful clamping multiwall to avoid compression.)

If using a standard circular saw blade, better results may be seen by running the blade backwards (remove and turn it over to reverse direction). Depending on thickness, some 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.

What is the best way to fasten Palram rigid PVC and polycarbonate panels in place?
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The best way is to use Palram-recommended screws fastened through pre-drilled holes that are slightly larger than the diameter of the screw. Pre-drilling insures that the panels will have room to expand and contract properly with temperature change. Skipping this step can lead to distorted or warped panels.

Whatever you do, never use nails. Unlike wood fibers, which compress when a nail is hammered in, Palram's rigid PVC and polycarbonate panels do not compress. That means there is significant risk of cracking and impact damage in the area of the attachment. Also, nailing the panels in place prevents them from safely expanding and contracting with temperature change, resulting in warping of the product.

For exact hole size guidelines and other important installation instructions, see the documents at the bottom of each specific product's web page.

How important is it to follow Palram general recommendations on product usage?
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Very. Palram recommendations for the storage, installation and general treatment of products are drafted to ensure that the product’s quality and serviceability is met to full extent, and following these recommendations ensures that product warranty isn't void. Please be sure to view the specific product's documents for more information.

Do I really need to buy Palram's recommended fasteners and related accessories?
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To ensure long-term warranty coverage, it is strongly recommended to use Palram-approved fasteners and accessories, which have been tested to ensure high quality and function.

Palram products + fasteners + related accessories should be thought of as a system meant to provide the best possible installation. Proper use of the complete system greatly reduces the possibility of problems and insures that product warranty will be honored.

Please see the installation instructions for the specific product for details.

Do Palram sheets expand in heat?
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Do any Palram polycarbonate products have a UL 94 fire rating?
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Can Palram sheets catch fire?
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All plastic materials are flammable to some degree, and will catch fire in presence of exterior flame.

The ignition temperature of polycarbonate sheets is 915ºF (490ºC).

The ignition temperature of PVC sheets is 736ºF (391ºC).

Both materials are self-extinguishing, and fire will decay when the exterior flame source is removed.

Note that compared to polycarbonate and PVC, acrylic sheets (which are not produced by Palram) are more flammable.

Can Palram sheets be curved?
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Bending/forming instructions vary by sheet material. Always check the installation instructions of the relevant sheet material.

But in general, some of our sheets can be cold-curved for arched shapes, provided the relevant Palram specifications for minimum radius in cold-curving are followed.

Rigid flat sheets can be cold-curved in any direction.

Corrugated sheets can be cold arched "along the grain" of the corrugation (lengthwise). Corrugated sheets cannot be curved/arched "against the grain." That is, do not bend perpendicular to the direction of the ribs.

Like corrugated sheets, multiwall sheets can be arched only "along the grain" of multiwall (lengthwise).

Our Palight Trimboard "lumber-style" boards can be heat formed in any direction, with the proper heating equipment and forming jig.

Again, see the installation guidelines for each material for specific instructions.

How should I store Palram sheets when not in use?
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Store sheets in a protected, shaded, ventilated site, with no direct exposure to sunlight and winds. For outdoor temporary storage, cover with an opaque protective tarp, avoiding heat-absorbing materials.

Important note: Palram flat (non-corrugated) panels have a protective surface film that keeps the product safe from dirt and scratches during the long journey from manufacturing to the job site.

These films are sensitive to heat and direct sunlight. Excessive heat and direct sunlight before taking off the film can cause that film to bond the sheet surface, after which it will be extremely difficult to remove the film from the sheet.

Can I use any of Palram's products as a hurricane screen?
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How long do Palram PVC and polycarbonate products last?
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Palram manufactures a variety of different products for different applications. Most have industry-leading warranties against manufacturing related defects, as well as specific warranties related to the intended use for the product.

However, with proper installation and maintenance, our products typically far exceed their 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, sun exposure, winds and erosion by airborne particles.

Warranty details can be found in the Downloads tab under the Warranties section at the bottom of the page for each individual product.

Can I recycle Palram polycarbonate or PVC panel scraps?
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Yes, Palram's polycarbonate and PVC sheet products are recyclable.

Polycarbonate products such as Suntuf, Sunlite, Palsun, DynaGlas, or ThermaGlas should be marked "Plastic #7" prior to recycling.

PVC products such as Palruf, Ag-Tuf, PALCLAD PRO HYG, Palclear, or should be marked "Plastic #3".

If local recycling is not available, other resources are available. For PVC products, click here to visit the Vinyl Institute's Recycling Provider Database.

For polycarbonate products, visit The Association of Post Consumer Plastic Recyclers site and review their materials buyers and seller's list.