Do not stack more than 150 sheets,
one over the other. If possible, do not expose to sunlight.
To
lift hold the sheets only in the places marked 'L'.
Improper storage of sheets may result in to damage of
the sheets. The damage will be noticed only after installation.
Always
store sheets on three even level supports. Sheets of varying
length should be stacked separately.
Always
carry the sheets lengthwise, not width wise. If sheets
have to be stored for long, keep indoors.
The
distance between two purlins should not be more than 1.40
meters for roofing and 1.70 meters for side cladding.
Clamp with a purlin at the end of each sheet.
Do
not make holes in the sheet by punching, always drill
holes. The drilled hole should be 3mm. Bigger than the
bolt. Use a Bitumen washer to seal holes.
The
hole should be drilled at least 2.95mm. away from the
edge of the sheet. Initially tighten nut bolts with the
hand only. After 13-14 sheets are installed then all the
nut bolds should be tightened together.
Tighten
the nut in such a way that the bitumen - washer can seal
the space between the bolt and the hole. Do not tighten
the bolt too much, otherwise the sheet will crack. Use
a spanner to tighten nut finally.
For
a secure fitting, wherever 4 sheets have to be joined
the corners should be mitred. The cut corners should be
150mm. in length and 44mm. in breadth. Use a saw to cut
corners. Do not use a cutter.
Put
bolts only in crowns, not in valleys.
The
bolt should pass through the second and the last sheet.
Use
a cat ladder for working on the roof.
The
outlet of the gutter line should not more than 15meters
away.
The
length of the free overhang should more than300mm.
PROCEDURE
OF MITRING:
For the bottom
row A, the first sheet should be cut ; DDG.-- Cut in the
upper left corner.
For the second and middle
rows B cut the bottom right corner of the first sheet.
E--upper left-hand corners
and bottom right hand corners to be cut.
H--cut only upper left corner
of the last sheet.
For the upper row cut bottom
right corners of C, F and F. Fix I without any cut.
