Sliding windows have many advantages and few disadvantages. Opening parts slide neatly within the frame space giving little or no obstruction to furnishings or people. Insect screens are very simple and easy to use. Twin sliding windows, where two sliding parts open in opposite directions, give excellent opening widths with a simple effective screening option. With the insect-screen removed they can be used for kitchen servery windows.
Sliding windows are supported on tracks that should be kept clear of dust and dirt for a long trouble free life. With this done, this tried and proven style is easy to use and will give great service for a lifetime of use.