Palram SUNLIT - Manual (Page 19)

SUNLITE® Technical Guide
17
17
Drilling
1. Drilling can be carried out with drill bits intended for metal. When pre-drilling for a fastening screw, the hole’s diameter should be 2
mm larger than that of the screw used. As when cutting, always support the sheet in the vicinity of the place being drilled, and clean
away the sawdust and shavings, both on and inside the sheet.
2. Special attention must be given to drill all the required holes perpendicular to the face of the sheet.
3. Though drilling the sheet for fastening is a common way of installation, it is recommended to be used mostly in plain, economy-
oriented projects, and used sparingly elsewhere.
Sealing and Bonding
1. Silicone Sealants: Palram strongly recommends ‘Dow Corning 3793’ - white, or ‘Otto Chemie Novasil S-64’ - white or translucent.
2. Sealant and Weather Strips: Applied in “wet” or “dry” systems.
The “Wet” system can use IDL 311 L Butyl rubber double-sided sticky tape by Sellotape, or simple neoprene or EPDM rubber strips,
combined with the silicone sealant above.
The “Dry” system uses neoprene or EPDM rubber packing strips (in simpler framing system), or profiled neoprene or EPDM rubber strips
inserted into grooves in the metal connecting/framing profiles. Mechanical pressure of the clamping profile on the rubber gasket
achieves the sealing, like in glass systems.
3. Sealing the Sheets is done by aluminum impermeable, or ventilated filter sticky tapes, as described in the paragraph “Pre-preparation
of the sheet” above. Such specialty tapes can be obtained from the leading tape manufacturers, or through Palram dealers (See figures
17b, 17c).
For alternative materials, please refer to our Recommended Adhesives and Sealants for Palram Polycarbonate Products brochure
available at the Palram website, or consult with your Palram distributor.
Accessories
Palram invests ceaseless efforts to create a complementary of accessories for the SUNLITE range of products, easing use, avoiding
runaround trying to find suitable solutions for proper installation. SUNLITE can now offer suitable corrosion resistants fasteners,
special washer/gasket combos and compatible sealing & bonding silicones. Immediately in line, or shortly, are basic polycarbonate
“H” connectors and “U” end-caps, along with impermeable and ventilated aluminum sealing tape for end closure. Various specialized
aluminum glazing profile, EPDM rubber sealing strips and gaskets will follow in the near future.
Please consult your local SUNLITE distributor for details.
Different aluminum or steel glazing profiles, structural elements, sealing materials and other components required for the completion of
varied projects appear, in concept, in the sketches in this manual. Such products & materials are usually available through professional
suppliers of metals and glazing accessories. Other designated elements like gutters, closures, ridge caps, trimming, flashing etc. are to
be specially fabricated according to specific design.
Figure 20