Installation Guide

.Profiles
• A polycarbonate U-channel may be used to cap off the top and
bottom of a multiwall sheet, preventing debris from accumulating
within the walls.
• Drill weep holes every twelve (12) inches in U-channel to ensure
proper moisture drainage.
• A polycarbonate H-channel may be used to join two multiwall sheets
together, providing a finished, professional look.
• An
aluminum base and cap frame system may also be used. For more
product information, call 800.421.0102 to speak to a knowledgeable
Polymershapes associate or visit www.baseandcap.com.
Note: Polycarbonate proles are not intended as a waterproof solution. It is highly recommended that
polycarbonate H-channels be installed vertically or with the slope. Installing H-channels horizontally may
result in leaking.
Sealants
After installing proles, a thin bead of sealant may be used to keep out air,
moisture, dirt, and debris but is not typically necessary. The use of a sealant is
only recommended for sealing points where the sheet meets an exterior wall.
• The pitch of a roof is calculated by the number of inches it
rises vertically for every 12 inches it extends horizontally.
• Snow, wind, and weather loads should always be considered
when determining your roof pitch.
• A low roof pitch may require additional sealing to ensure
weather resistance.
• To ensure proper drainage of roong systems, a minimum
slope of 2:12 is recommended.
Note: Only use a 100% silicone sealant. Other types of caulking or sealants may
attack the sheet. Always check the product label to ensure sheet compatibility.
If you have any
questions concerning the install components required for
your project, please contact Polymershapes at 800.421.0102 or send
an email to [e-mail].
Structural Design Guidelines
Pitch
Before building your structure, you will want to determine the pitch of your roof. The slope or angle of a
roof is referred to as the pitch. Beyond aesthetics, the main purpose of a roof’s pitch is to shed water,
snow, and other debris from the roof.
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MULTIWALL POLYCARBONATE
Technical & Install Guide