Lining an existing wall with a plasterboard lining is, in many cases, quicker and less invasive than chipping out and rebuilding the wall, and is worth explaining to the client as an alternative before proposing major work.
When a lining is appropriate
It is the usual solution for improving the thermal or acoustic insulation of a facade or party wall without touching the exterior, for hiding new electrical or plumbing installations without chasing deep channels, or for correcting a wall with an uneven finish without needing to re-plaster.
Direct or free-standing lining
Direct lining (board stuck with adhesive paste) takes up very little space but doesn't allow thick insulation or installations behind it. Free-standing lining (with a framework separate from the wall) allows thicker insulation and complete installations, at the cost of taking a little more space from the room.
How much space is lost
A direct lining takes barely 1-2 cm for the thickness of the board and adhesive paste. A free-standing lining with insulation normally takes between 4 and 8 cm, a figure worth telling the client before starting, especially in small rooms where every centimetre counts.
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