Window - Whether of M.S. or of Aluminium

Compare M. S. window with Aluminium window?

Ans:    

Sr. No.	M. S. WINDOW	ALUMINIUM WINDOW
1	M. S. windows are normally opening type.	Aluminium windows are normally sliding type.
2	M. S. windows are strong and normally a ‘build-in grill’ is provided to prevent burglary.	Aluminium windows are relatively delicate and ‘built-in grill’ is not provided. A separate M. S. grill is needed to prevent the burglary.
3	M. S. windows rust if not painted periodically.	Aluminium does not rust.
4	When closed, air ventilation is not totally sealed in M. S. window.	Air ventilation is well sealed in Aluminium window, when closed. This is much useful in A. C. control or for preventing the cool air in winter.
5	Like air ventilation, the sound/noise transfer is also not prevented in M. S. windows	Sound/noise transfer is much better prevented in Aluminium windows.
6	Appearance is not as good as Aluminium windows.	Looks better than M. S. windows.
7	Less expensive than Aluminium windows.	More expensive than M. S. windows.
8	Normally it is painted with Synthetic enamel.	Normally anodized or powder coated.