Lime ceiling Case study
Cob/lime ceiling repair
Wood chip paper was removed from this ceiling. The ceiling was friable and patched but remained well adhered to the lathes.
To provide a stable, decoratable finish that would last, whilst adding the least weight to the existing ceiling; the following process was carried out:
Ready to plaster
These images show the ceiling after wood chip paper was removed.
Perished plaster from walls has been removed. Furniture and floors and well protected.
Stage 1 was to apply low acrylic, aggregated primer. This manages suction, stabilises the surface and provides mechanical key, without reducing permability
A thin coat of medium coarse lime plaster with short fibers, mixed with fine lime plaster is applied. This mix gives flexural stability, a good key to the fine aggregate and is very light weight when dry. A layer of fibre glass mesh is embedded in this coat.
Fine lime finish is applied. Trowelled softly with minimum pressure to avoid flexing the original ceiling. A smooth, even, faultless finish is achieved. The ceiling retains much of the undulation of the original ceiling, retaining to the charcter of the ceiling, room and property