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| ABOUT US |
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| Centurywells was established in the
year 2002 in Chennai |
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| Technical
Specifications |
GANGA
Roofing, wall cladding, tile, corrugation and
accessories are manufactured from the finest high
quality raw material coils of PPGI (Pre Painted
Galvanized Iron), PPGL (Pre Painted Galvalume)
and NCGL (Non Colour Galvalume). |
| Structure
of Pre-painted Steel Sheet |
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| Material
Specifications |
Material
Specifications |
PPGL ( Pre
Painted Galvalume
Alu Zinc coating ) GL Base
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PPGI (Pre Painted
Galvanized Iron) GI Base |
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Material Specifications
NCGL ( Non Colour Galvalume
or Bare Galvalume Alu Zinc coating ) GL Base
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Thickness |
: 0.40mm~0.60mm |
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Alu
-Zinc coating |
: AZ100,
90,AZ70 and higher Alu-Zinc coatings
optional |
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Coil width |
: 1145
mm / 1170 mm |
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Sheet width |
: 1060
mm |
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Effective
width |
: 1000
mm |
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Tensile
strength |
: Standard
245~345 Mpa optional |
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Standards
met |
: ASTM A792,AS
2728, IS277 |
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| Trapezoidal
Roofing Load Chart |
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| Note
: DLLL
Dead Load + Live Load (Deflection Limitation :
Span/180)
UDL-Wind Uniform
Distributed Load - Wind (Deflection Limitation
Span/120)Material Conforming to ASTM 792 Grade
80 (Yield Strength 550mpa) or equivalent |
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| Alllowable
Uniform Load Kg / m2 |
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Sheet
TK
mm |
LoadCase |
Purlin
Spacing Meter |
|
1.0 |
1.1 |
1.2 |
1.3 |
1.4 |
1.5 |
1.6 |
1.7 |
1.8 |
1.9 |
2.0 |
|
0.35 |
udi
- DLLL |
306.4 |
230.2 |
177.3 |
139.5 |
111.7 |
90.8 |
74.8 |
62.4 |
52.5 |
44.7 |
38.3 |
| udi
- wind |
574.6 |
431.7 |
332.5 |
261.5 |
209.4 |
170.2 |
140.3 |
116.9 |
98.5 |
83.8 |
71.8 |
|
0.4 |
udi
- DLLL |
395.7 |
297.3 |
229 |
180.1 |
144.2 |
117.2 |
96.6 |
80.5 |
67.8 |
57.7 |
49.5 |
| udi
- wind |
741.8 |
557.4 |
429.3 |
337.7 |
270.4 |
219.8 |
181.1 |
151 |
127.2 |
108.2 |
92.7 |
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0.47 |
udi
- DLLL |
521.6 |
391.9 |
301.9 |
237.4 |
190.1 |
154.6 |
127.4 |
106.2 |
89.4 |
76.1 |
65.2 |
| udi
- wind |
978.1 |
734.8 |
566 |
445.2 |
356.4 |
289.8 |
238.8 |
199.1 |
167.7 |
142.6 |
122.3 |
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0.5 |
udi
- DLLL |
574.4 |
432.3 |
333 |
261.9 |
209.7 |
170.5 |
140.5 |
117.1 |
98.7 |
83.9 |
71.9 |
| udi
- wind |
1078.9 |
810.6 |
624.4 |
491.1 |
393.2 |
319.7 |
263.4 |
219.4 |
185 |
157.3 |
134.9 |
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0.6 |
udi
- DLLL |
736.8 |
553.6 |
426.4 |
335.4 |
268.5 |
218.3 |
179.9 |
150 |
126.3 |
107.4 |
92.1 |
| udi
- wind |
1381.6 |
1038 |
799.5 |
628.8 |
503.5 |
409.4 |
337.3 |
281.2 |
236.9 |
201.4 |
172.7 |
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| SAFE HANDLING
, INSTALLATION AND MAINTENANCE |
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Durability
& Safety |
Design
& Flexibility |
Superior
Technology |
Environment
Friendly |
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Packing,
Storage and Handling : Keep the product
dry and clear off the ground on wooden blocks.
Do not slide the sheet over rough surface.
If sheets are wet, wipe with clean cloth.
Roofing & Cladding sheets should be
erected as soon as possible on arrival at
the job site. In case of temporary storage,
the same should be stored in-doors. In case
of outdoor storage, the sheets have to be
covered with tarpaulin.
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Walking on roof
: Walk on the valley
of the roof thus keeping your weight evenly
distributed. |
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For cutting the sheets,
the usage of knibbler is recommended. The
cut materials and metal particles are required
to be swept from the ground. Failure to
do so will lead to rusting or surface staining. |
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Fixing of SDS screws
recommended with Torque adjustable guns.
For roof work, fix screws on the crest.
For wall cladding, fix on the crest or on
the valley. Fasteners to confirm to AS 3566
Class 3 - 4 for external application. |
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