Installation Guide

Sheet Orientation and Positioning
Install multiwall sheets with the UV-protected side up or facing the sun. On sheets with only one UV-
protected side, the protective film indicates which side is protected.
• Install sheets with the utes (ribs or channels) running
vertical (downward) to allow for proper drainage.
• Use an H-Channel to join two multiwall sheets together.
This gives a nished, professional look. The ‘longer
leg’ of the prole should be installed on the inside of
the sheet, facing the interior of the structure.
• Make sure the UV-protected side of the sheet faces
upward or towards the sun.
Cold Bending
When cold-bending multiwall polycarbonate, the flutes (ribs or channels) should follow the curve of the
sheet. Sheets can be bent in a variety of diameters. Maximum bending radius is in accordance with
sheet thickness.
• Bend sheet longitudinally, never across sheet width.
• Bending the sheet lengthwise maintains its sheet strength and ensures proper drainage.
• Avoid over tensing the sheet. Do not ex or install sheets to the point of buckling.
PRODUCT
THICKNESS MM
(INCHES)
MINIMUM
BENDING
RADIUS
4mm Twin wall 4mm (5/32) 30”
6mm Twin wall 6mm (1/4”) 34”
8mm Twin wall 8mm (5/16”) 55”
10mm Twin wall 10mm(3/8”) 69”
16mm Triple wall 16mm (5/8”) 110”
16mm Five wall 16mm (5/8”) 110”
20mm Five wall 20mm 138”
25mm Triplewall 25mm 173”
25mm 5x wall 25mm (1”) 173”
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MULTIWALL POLYCARBONATE
Technical & Install Guide