Palram SUNTU Plus - Manual (Page 7)

Greenhouse Installation Guide
5
3. Butyl rubber sealing strip should be used where the pitch is less than 15%
or in case where penetration of wind or fumes must be prevented. The
strip should be placed between the sheets at the width end lap, along
and exteriorly to the screw line.
Warning: Do not use materials which are not recommended by Palram.
Specifically, polyurethane foam should not be used as insulating foam with
SUNTUF Plus. Contact with this material will render the sheets fragile. When
in doubt, consult your Palram distributor.
Overlap
1. Width overlap (sheet edge):
Minimum overlap: 120 mm
Minimum distance of 60 mm of
each sheet’s edge from center line
of supporting purlins (line of screws).
Maximum overlap: 200 mm
2. Length overlap: One corrugation**
3. Roof Edge: Sheets at the roof’s edge
should extend beyond over the edge
support by not more than 100 mm.
Positioning the Sheets
1. Only one side of a SUNTUF Plus sheet is UV protected*. This side must always
face out toward the sun. The UV protected side is indicated by a sticker or
polyethylene strip along the length of the sheet. The sticker or polyethylene
strip must be removed immediately after the sheet is installed.
2. The sheets should be laid down on the roof or set upon the wall against
the primary direction of wind and rain.
3. Do not step on the panels between purlins.
4. Stepping ladders and other devices required for safe work should be used.
5. Never leave panels unattended until all the required screws have been
tightened.
6. Due to the sheets’ low weight, SUNTUF Plus can be rolled for the purpose
of lifting them to the roof. The sheets must be rolled perpendicular to the
length of the corrugations, with the upper UV protected side facing outwards
and the lower side with the anti-condensation treatment facing inward.
* Except for SUNTUF Plus UV2 which is manufactured with co-extruded UV protection on both
sided when a special order has been placed.
Use of Shading Compounds
1. It is possible to apply shading compounds on SUNTUF Plus sheets.
2. Use only recognized commercial brands, confirmed to be compatible with polycarbonate. Do not apply dubious mixtures
that may contain incompatible components, which will attack and damage the sheets.
3. In case of doubt, consult your SUNTUF Plus distributor, who can advise you on the proper use of shading compounds.
4. You can ask for recommendations on compatible formulations that were tested and confirmed for use by Palram Industries.
Note that all the recommended formulations are water-soluble and will eventually be washed away by rains.
5. Shading compounds should be easily removed using a strong water jet in conjunction with vigorous brushing with a soft
bristle brush, or wiping with soft cotton rags.
90°
Lay Sheets against
Wind Di
rection
Direction of
Wind and
Rain
Int
ernal
Pu
rlin
to
Pu
rlin Distance
Edge
Pu
rlin
to
Pu
rlin Distance
100 mm
M
inimum Slope 10%
Width Overlap
Length Overlap
120-200 mm
19 mm washer
19 mm washer
19 mm washer
Greca Profile
Omega Profile
25 mm washer
25mm washer/gasket 19mm washer/gasket
INCORRECT -
Non-perpendicular drilling
and insertion.
CORRECT INCORRECT -
Excess over tightening
Self-tapping screw Self-drilling screw Wood screw
90°
Lay Sheets against
Wind Di
rection
Direction of
Wind and
Rain
Int
ernal
Pu
rlin
to
Pu
rlin Distance
Edge
Pu
rlin
to
Pu
rlin Distance
100 mm
M
inimum Slope 10%
Width Overlap
Length Overlap
120-200 mm
19 mm washer
19 mm washer
19 mm washer
Greca Profile
Omega Profile
25 mm washer
25mm washer/gasket 19mm washer/gasket
INCORRECT -
Non-perpendicular drilling
and insertion.
CORRECT INCORRECT -
Excess over tightening
Self-tapping screw Self-drilling screw Wood screw
Butyl rubber strip
90°
Lay Sheets against
Wind Di
rection
Direction of
Wind and
Rain
Int
ernal
Pu
rlin
to
Pu
rlin Distance
Edge
Pu
rlin
to
Pu
rlin Distance
100 mm
M
inimum Slope 10%
Width Overlap
Length Overlap
120-200 mm
19 mm washer
19 mm washer
19 mm washer
Greca Profile
Omega Profile
25 mm washer
25mm washer/gasket 19mm washer/gasket
INCORRECT -
Non-perpendicular drilling
and insertion.
CORRECT INCORRECT -
Excess over tightening
Self-tapping screw Self-drilling screw Wood screw
90°
Lay Sheets against
Wind Di
rection
Direction of
Wind and
Rain
Int
ernal
Pu
rlin
to
Pu
rlin Distance
Edge
Pu
rlin
to
Pu
rlin Distance
100 mm
M
inimum Slope 10%
Width Overlap
Length Overlap
120-200 mm
19 mm washer
19 mm washer
19 mm washer
Greca Profile
Omega Profile
25 mm washer
25mm washer/gasket 19mm washer/gasket
INCORRECT -
Non-perpendicular drilling
and insertion.
CORRECT INCORRECT -
Excess over tightening
Self-tapping screw Self-drilling screw Wood screw
** Two corrugations length overlap is recommended for slopes below 15%, or in case of extreme
weather conditions (excessive rain and/or wind.)