Conservation work

Lime Plastering

Lime plastering is important to conservation work. Preparation is vital rather than simply going mad with a Kango hammer, as that may destroy the fabric of the building.’

Lime Plastering

We make sure that the mortar joints across the wall are not too deep; the walls must be clean, dust free and dampened down, and any larger holes must be filled with pinning stones. Then the wall can be rough pointed ready for the first scratch coat.
The walls are left for two to three weeks between coats to allow carbonation to take place; during this period the walls are dampened down to retain moisture. The same process applies to outside and inside work but on the outside we use hessian sheeting to keep the wind and sun off. The sheeting helps retain moisture during the dampening down period, which creates a damp atmosphere so that the lime does not dry too fast, which then allows for the carbonation to take place.

Hot Lime Wash

Hot lime wash can be used inside or outside. If used outside it is always used for a shelter coat. Colour pigments can then be added for different colours.

Used For


Smooth finish that isn't flat smooth but has a biscuit like appearance; ashlar finish is to replicate an ashlar stone facade; lime cast/rough cast that is multiple coats of larger aggregated mortar using a harling technique (this is the most common form of weather defence); lath and plaster on ceilings and walls. Jason likes to use hemp for base coats then a fine lime finish for the top coat.

Lath and plaster on ceiling and walls Jason likes to use Hemp for base coats then a fine Lime finish for the top coat

Pembrokeshire Limework have lime treated the west facing exposed wall of our house, which had severe damp problems in the past. Jason Bushnell explained clearly what was happening every step of the way and their presence was courteous, friendly and helpful throughout. The work is of a good standard and we would recommend Pembrokeshire Limework for any similar jobs.