Dot-and-Dab

A dry lining technique where plasterboard is fixed directly to masonry walls using blobs (dabs) of bonding plaster rather than a timber or metal framework. The boards are pressed onto the dabs and straightened to provide a flat, plumb surface. Dot-and-dab creates a small void between the wall and the board; where combined with insulated plasterboard this void provides a cold bridge risk if not properly detailed.