Comparative Characteristics Of Various Roofing Materials

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