Chemical resistance & compatible sealants, Positioning the sheets, Arching radius – Palram SUNLIT User Manual
Page 5: Sunlite® technical guide
SUNLITE® Technical Guide
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Chemical Resistance & Compatible Sealants
SUNLITE has good resistance to many chemicals. Some chemicals may harm the SUNLITE sheets. Detailed information about these
materials can be found at the
. Please contact your Palram dealer
when in doubt about any material or chemical.
When choosing adhesives or sealants to be used during installation of SUNLITE sheets, please refer to
from the Palram websites.
For use of any adhesive or sealant not listed in the above brochure, consult with your Palram dealer to get his approval. Failure
to do so will void any and all warranties.
Positioning the Sheets
1. SUNLITE sheets should be installed with the rib channels sloping downwards (Figs. 1a, 1c, 2). That orientation will reduce accumulation
of dirt inside the sheet and ease gravity drainage of any condensation moisture.
2. Sheets should be installed with the adjoining edges connected by a glazing profile suited to the glazing system.
3. For sheets installed in the flat, horizontal position, (roofs, overhead skylights),
a minimum slope of 5 percent is imperative, with 10 percent and above
preferable. Steeper slopes offer better rainwater drainage and self-
cleaning, and reduce the risk of water and dirt infiltration through
the connectors and fastening screws. Steeper slopes also help to
diminish the visual effect of sheet deflection caused by loading.
4. Length dimension is defined as parallel to the ribs, while width
will always be perpendicular to the ribs.
Arching Radius
SUNLITE sheets may be cold bent or curved up to their minimum
permitted radius, using polycarbonate’s natural tolerance for cold
forming with no need for thermal processing. Curving SUNLITE
sheet beyond this minimum permitted radius induces undue stresses and strains in the glazing sheet, causing premature failure and
will void the warranty.
Structure
Thickness
Minimal Cold Bending Radius
mm
Inch
mm
Feet
Inch
Twin Wall
4
5/32
700
2.30
28
6
1/4
1,050
3.40
41
8
5/16
1,400
4.60
55
10
3/8
1,750
5.70
69
Triple Wall
8
5/16
1,760
5.80
69
10
3/8
2,200
7.20
87
16
5/8
2,800
9.20
110
X-Lite
V-Structure
16
5/8
3,000
9.80
118
25
1
5,000
16.40
197
32
1 1/4
6,400
21.00
252
35
1 3/8
7,000
23.00
276
Figure 1a
Figure 1b
Figure 1c
Length
Width
Width
Figure 2
Flat, two-sided clamped glazing
Slope > 5%