FREQUENTLY ASKED QUESTIONS

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Questions
What is the protection level for ballistic?
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For bullets, BULLETPROOF offers UL 752 protection up to level 6 — protection against automatic weapons firing pistol-caliber ammunition such as an Uzi sub-machine gun chambered in 9 mm.

What is the range of colors for PALCLAD Pro?
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PALCLAD Pro comes standard in white and off-white. In addition, 10 more colors are available on special order. PALCLAD Pro can be printed on with excellent ink adhesion to surface and print quality.

What is the recommended purlin spacing for SUNTUF corrugated polycarbonate roofs?
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The required purlin spacing for corrugated polycarbonate roofing depends on a number of factors, including the size and type of corrugated sheets. In addition, the type of support structure, and local building codes.
Follow Palram's technical guidelines for the specific SUNTUF product you have chosen. This will ensure that the roofing is properly supported and able to withstand the loads and stresses it will be subjected to.

What is the right roof pitch for SUNTUF and PALRUF corrugated plastic sheeting?
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A proper slope keeps water off the roof. It prevents leaks, keeps the roof clean, and ensures structural integrity.
Roof slope percentage indicates how much the roof falls over a given distance. For example, the roof slope would be 5% if it dropped 5 centimeters over one meter.
DIY corrugated plastic sheet typically requires a 10% slope. Some profiles call for a deeper slope. Check the specs of your sheeting to be sure.
Pay attention: If you expect leaves or snow to accumulate on your roof, consider a deeper slope.

What Is the Right Saw for Cutting PALRUF Corrugated PVC Sheets?
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Safety First: Protect yourself by using professional equipment, keeping your surroundings neat and tidy, and using tools with caution and care.
 
Power tools
Circular table saws are the most efficient and accurate way to cut plastic sheets. This option, however, is rarely available on home improvement sites.
A portable fine-toothed circular saw is ideal for cutting on-site. High blade speed and moderate feeding rate will give you the best results.
A jigsaw also produces clean, accurate cuts, but requires better control. It is most suitable for cutting complex shapes and curved lines
 
Manual tools
Working with manual tools is time-consuming, but it reduces the possibility of sheet damage.
Manual handsaws with fine teeth provide accuracy and control
Hand tools such as tin snips, scissors, or even a utility knife are useful when working with thin PVC sheets or making small notches.
 
Additional tools
You will need a flat, stable workbench to work on.
To set guidelines, you will need a tape measure, a ruler, and a marking pen.

What Is the Right Saw for Cutting SUNTUF Corrugated Polycarbonate Sheets?
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Safety First: Protect yourself by using professional equipment, keeping your surroundings neat and tidy, and using tools with caution and care.
 
Power tools
Circular table saws are the most efficient and accurate way to cut plastic sheets. This option, however, is rarely available on home improvement sites.
A portable fine-toothed circular saw is ideal for cutting on-site. High blade speed and moderate feeding rate will give you the best results.
A jigsaw also produces clean, accurate cuts, but requires better control. It is most suitable for cutting complex shapes and curved lines
 
Manual tools
Working with manual tools is time-consuming, but it reduces the possibility of sheet damage.
Manual handsaws with fine teeth provide accuracy and control.
Hand tools such as tin snips, scissors, or even a utility knife are useful when working with thin polycarbonate sheets or for making small notches.
 
Additional tools
You will need a flat, stable workbench to work on.
To set guidelines, you will need a tape measure, a ruler, and a marking pen.

What kind of gasket is suitable for corrugated SUNTUF and PALRUF sheets?
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Flexible EPDM gaskets with metal washers.
Flexible EPDM gaskets allow just enough free movement for the sheets as they contract and expand. This ensures an effective seal against leaks and reduces stress and micro cracks. The metal washers will distribute the fastener load and will support the gasket.
Gaskets should conceal holes properly.
Use a 25mm gasket for a 10mm drill. A 19mm gasket is the alternative when the corrugation profile does not allow a wider gasket (if the valley or crest is too narrow).

What level of protection against forced entry can I expect from BULLETPROOF?
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BULLETPROOF offers forced entry protection equivalent to ASTM F1915-05 Security Grade Level 1-3 — a standard developed to measure impact-resistant fittings in correctional facilities.

What size do bullet resistant polycarbonate sheets come in?
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PALSHIELD ballistic grade polycarbonate is available in a variety of sizes and specifications. Custom size options are available upon request.

When roofing with PALRUF corrugated panels, where should I fix the screws – valley or crest points?
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Crest fixing is preferred.

When roofing with PALRUF corrugated panels, where should I start to install?
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You can choose to install left to right, or right to left. It is recommended to always advance against the dominant wind direction at the site. Never start at both sides, or at any two separate points.

When should I specify a matte surface finish for the polycarbonate?
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A matte surface finish is good if you want to avoid glare within your surroundings.

When should I use multiwall polycarbonate and when solid polycarbonate?
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Multiwall polycarbonate should be used when the key design parameter is thermal insulation. Solid polycarbonate should be used when the key design parameter is acoustic insulation and glass-like appearance.

When should I use PVC corrugated sheets versus polycarbonate corrugated sheets?
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PVC corrugated sheets are mainly used for opaque roofing and siding of industrial buildings in highly-corrosive environments such as port warehouses, cowsheds, and dairies. Polycarbonate corrugated sheets are mainly used as roofing or siding where natural daylight illumination is needed.

Where should I use corrugated versus multiwall polycarbonate covering?
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SUNTUF Plus corrugated polycarbonate sheets provide the best light transmittance and UV light resistance, with exceptional load bearing and impact-resistance properties. SUNLITE Plus multiwall PC sheets provide the best thermal insulation. In locations where you would prefer thermal insulation to light transmission, you should use SUNLITE Plus multiwall PC sheets.

Which material diffuses the light better?
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The diffusion is not defined by the material, but by the diffusion additive that is part of the manufacturing formula. The materials should be selected by their fit to the application (e.g. polycarbonate for thermo-forming or extreme weather). Usually products marked with sign grade and/or diffusion grades have greater light diffusion than others.

Which materials can be used in the construction of my sign?
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Sign faces are usually made from polycarbonate or acrylic. For extreme conditions such as heavy hail, low temperatures, or high temperatures produced when thermo-forming, polycarbonate is probably more suitable. For sign boxes or channel letter cans, PVC, multi-layered PVC and foam PVC can be used.

Which of Palram’s sheets are suitable for printing, sign & display applications?
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For use in illuminated signage, PALSUN, PALSUN CS (Coil Stock) and PALGLAS are suitable for the sign face; and PALBOARD, PALOPAQUE, and PALIGHT for the body of the letters or symbols. For print & display, Palram's entire product portfolio can be used based on the specific application. This choice depends on a combination of several parameters, including the cost of the media, its durability, and its suitability for the specific application. Please visit Palram’s Flat sheet application catalog for more information.

Which screws to use for fixing corrugated SUNTUF and PALRUF roofing sheets?
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Use corrosion-resistant screws for optimal long-term service
Use screws with an outside thread diameter of ¼”
Screw shaft length varies with corrugation profile and fixing location (crest or valley).
Use self-tapping screws for timber purlins, and self-drilling screws for metal purlins.

Which side of the SUNTUF roofing sheet should face up?
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Look for a removable strip that indicates which side of the sheet is UV-protected.
It is critical to install the sheets with the UV-protected side facing up. 
Remove the marking strip after installation.