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Premium Twinwall & Triplewall Polycarbonate
 Sheet by Verolite
Physical Properties, Installation, Maintenance 

9,200

6

110

1.2

275ºF

275ºF

1.65 in/min.

Light Transmission

Insulation values

The resins used to make Verolite® are specially developed for excellent flame retardant properties.

Insulation

The twinwall profile gives effective heat-loss reductions when used instead of regular glass. Savings of up to 50% have been documented. Insulation values increase with thicker profiles, as noted in the Standards Table.

Storage of Panels

The sheets should be stacked on a solid flat surface. Store out of direct sun to avoid accumulated heat effects. Cover for protection. Never use flexible vinyl sheet as a cover a the plasticizers may react with the polycarbonate. Supported sloped stacking is recommended, but sheets may be stacked up to 3' high on a flat, even supported surface.

Protective Film

All Verolite® panels are supplied with a protective PE film on both sides which should be kept on until the panel is fastened. The U.V. protected side is to be faced towards the sun and is marked with printed film.

Cleaning of Installed Panels

Verolite® should be protected from abrasion by the installer. After installation, panels should be washed with mild soap or detergent and lukewarm water using only a clean sponge or soft cloth, then rinsed with clean water. Never use abrasive cleaners, solvents or sharp tools on the sheets. Wipe dry with a soft cloth to avoid water spotting in hard water areas. Fresh paint, grease, and smeared glazing compounds may be removed before drying by rubbing lightly with a good grade of naptha or isopropyl alcohol followed by a final wash with mild soap or detergent and final rinse. Contact the manufacturer for reference to specific cleaner brands.

Fabrication

Verolite® wont crack or split when cut or drilled. Able to stand extreme abuse, its impact strength is 200 times greater than glass and 10 times greater than acrylic.

Verolite® may be cut using a circular saw with a fine tooth blade for sizes up to 16 mm, with a razor knife cut on both sides of the material. Compressed air may be used to remove dust from the channels.

Polycarbonate panels are resistant to some chemical and products non-resistant to others. Resistance can be effected by the chemical concentration, duration of exposure, degree of pressure and temperature at time of contact.

The following chemicals are considered safe:

Installation - Verolite® Polycarbonate

1. Always install the sheets with the flutes oriented vertically. When used as a roof covering, design with at least a 5" slope, never horizontal.

2. Remember to allow for expansion and contraction in every installation. Bronze and grey panels change more in size. Use extrusions that allow for sufficient edge engagement plus the expansion allowance.

3. Polycarbonate panels can be cut with protective masking in place with a fine tooth saw or sharp knife. Remember to remove the masking prior to final fixing in place. Chips from cutting should be blown out of the flutes.

4. The specially treated weather side is identified on the masking. This side must always face the exterior.

5. In vertical installations, the top flutes should be capped with an extrusion or tape and the bottom left open for drainage.

Glazing sheets should be joined by Verolite extruded polycarbonate profiles and be installed with their protective U.V. stabilized surface towards the exterior. 

The use of horizontal bars should be avoided. Instead. order Verolite® in the proper length (up to 48 feet).

For proper application of Verolite® in roofing conditions, a slope of at least 5° is required.

For proper point fastening, 1" neoprene bonded washers should be used with screws.

All polycarbonate materials expand and contract with changes in the temperature. The thermal expansion factor (ASTM D-696) is 3.9 x 10-5. When using extruded channels for installation it is important that the channel offers sufficient edge engagement to hold the sheet secure.

Allow for thermal expansion during installation at a rate of 1/8" per 3 feet at 100° F temperature differentials in both width and length of the sheet. Bronze panels will require an additional 30% space.

Use silicone sealants compatible with polycarbonate such as: #999-A with Primer, Dow Corning Corp., Mississauga, Ont. & Midland Mich. or Silglaze N Gesil N, General Electric Co., Waterford, NY. (Always check compatibility to polycarbonates before using elastometric adhesive and soft gaskets for dry installation system.)

Minimum bend radius for cold forming Verolite® sheets in an arched application: 4.5 mm/22"; 6.0 mm/24"; 8.0 mm/32"; 10.0 mm/40", and 16.0 mm/96".

Verolite panels can be readily cold formed to many bending radii and can be fabricated on site to precise dimensions. It is important to avoid over tensing of the sheet, therefore, the minimum bending radius must be 150 times the thickness of the panel. Minimum Bending Radius = Ft./1

Bending Radii

Maximum spacing of Purlins (in inches)

This diagram is valid only when the conditions outlined below are followed.

• Correct calculation of expansion in order to provide for the necessary allowance in the framing, The thermal expansion co efficient is 0.0000375 in/in ° F.
• Where possible install the sheets with the ribs running vertically and following bending in bending applications.
• Washers and sealing materials must be compatible with polycarbonate.

Guidelines for selecting sheet thickness and Purlin spacing (sheet supported on the four sides) 

Max. Purlin spacing (inches) Deflection - 1"

4' Width

6' Width

Max. Purlin Spacing (inches) Deflection - 3"

4' Width

6' Width

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