A skim coat is a very thin layer of drywall joint compound that covers an entire ceiling or wall. It is smooth and hides all imperfections in the drywall beneath it. A skim coats is the final step necessary to achieve a level 5 drywall finish, the highest level of finish available.
Dry lining is the generic term for insulating the internal face of external walls. Internal Dry Lining also offers the opportunity for householder to improve the appearance of their existing older walls. An insulated backed plasterboard is applied to the walls with adhesive and mechanical fixings.
A popular building methode used to construct ceilings and interior walls using a plasterboard. Standard plasterboard is made by sandwiching a layer of gypsum plaster between two thick sheets of paper. Plasterboard was introduced to Australia in the 1940's.