Purpose of lintel
- Act as a tie beam.
- To transfer load of above massonary of window frame to the surrounding massonary.
- To provide confinement of structure.
- To support chhajja.
- Act as a DCP.
Purpose of sill level
- To provide support of windows frame
- To provide smooth bottom surface to the window.
- Sometime stand provide near to windows that time sill support stand.
- Prevent water penitration.