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Comparative Characteristics Of Various Roofing Materials |
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S.
NO. |
CHARACTERISTICS |
ASBESTOS
CEMENT
SHEETS |
CORRUGATED
GALVANISED
IRON SHEETS
(CGI) |
ALUMINIUM
SHEETS |
RED MUD
PLASTIC
(RMP) |
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| 1. |
Life Span |
50 (Min) |
5-10 Not |
Available |
5 |
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(years) |
Non-Corrosive |
(Corrosive) |
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(Tends to getFlattened) |
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| 2. |
Maintenance |
Nil |
Every 3-5 |
Nil |
Nil |
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years |
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| 3. |
Fire Rating |
Retardant |
Tendency |
Tendency |
Fire Prone |
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to twist |
to twist |
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& melt |
& melt |
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| 4. |
Thermal |
Good |
Poor |
Poor |
Fair |
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Conductivity/ Insulation |
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| 5. |
Accoustic rating |
Good |
Poor |
Poor |
Poor |
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| 6. |
Absorption of Rain |
Good |
Poor |
Poor |
Poor |
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& Wind Noise |
(Deadens these
Noises) |
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| 7. |
Energy |
3 |
36.6 |
33 |
48 |
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Consumption
(KWH/SqM) |
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| 8. |
Manpower |
Intensive |
Low |
Low |
Low |
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Potential |
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| 9. |
Imported Content |
5.6 |
15-22.5 |
1 |
33 |
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(Rs./SqM) |
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| 10. |
Wind Resistence |
Good |
Poor |
Poor |
Poor |
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when
installed |
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