Steel Section Frames | |
Very Cheap easily accessible by common man | |
Fabrication cost much less. | |
No recurring expenditure: Little maintenance | |
No effects of weather & moisture | |
Easily withstands fire hazards | |
Very high Strength can with stand heavy loads hence can be used in bigger windows/ doors. | |
Use of steel ensures preservation of Forests & jungles thereby protection of environment and our own existence. | |
Long Life |
Wooden Section Frames | |
Too costly & beyond common Man's reach. | |
Additional cost for fitting carpentry, polishing & finishing very high. | |
Involves recurring expenditure for maintenance. | |
Susceptible to effects of weather and moisture resulting in deformity shrinking, twisting & warping. | |
Fire completely destroys. | |
Is eaten away by termite, white ants & rats. | |
Continuous use fast eliminating trees destroying natural heritage polluting environments so vitally needed for human survival. | |
Durability & strength: Average |
Aluminium Section Frames | |
Very costly as compared to steel sections. | |
Durability & strength is average. | |
No repairs possible. | |
No flexibility in designs. | |
Due to low melting point of aluminium fire resistivity is poor. |
PVC Section Frames | |
Durability & strength is very poor. | |
Cannot be recycled, a big environmental hazard. | |
Repairs not possible at all. | |
Available in standard sizes only so no design flexibility. | |
Cannot withstand fire at all. | |
Due to low strength cannot be used in bigger windows/ doors. |