Harber Carpentry and Restoration 

Lime plater is a traditional wall covering which allows the building to ‘breathe’ allowing any trapped moisture to pass through the building. Unlike modern gypsum plaster, this can not breathe and traps the moisture.
 

Lime on the other hand has more character which blends in with the quirky lines of a traditional timber framed house. Once the lime has set it is advised to finish it by giving the new plaster a good lime wash. If the area is external then frequent maintenance is advised with a lime wash every other year. 
 

External lime rendering, is much the same. Removing the cement render, which has either cracked or has failed allowing the wether to get in, which in turns rots out the timber frame. Cracks usually appear due to the sole plate rolling and the frame trying to move. Removing the external wall covering and reinstalling lime would always be best practice. This can either be on original wattle and daub panels, clay lump blocks, wooden lathes, wood wool savolit boards, stico boards or even hemp. All of these allow the moisture to pass through still allowing the building to breathe.