the plastering of the inside of flues, intended to give a smooth surface and help the draught.

The internal render of a chimney.

Decorative coating of plaster applied to a chimney or other masonry wall.

plaster used to coat outer walls and line chimneys

ornamental plastering

to coat a wall ornamentally with plaster as the medium.

The process of applying a coat of cement mortar to masonry. Often spelled and/or pronounced parging.

Pargeting (or sometimes pargetting) is a decorative plastering applied to building walls. The technique is largely confined to East Anglia in England.