Hi, I have a stone property built in 1835, the walls are circa 2 ft thick. The gable end has been rendered at some point back in the 60/70s. In the rooms at this side of the house the moisture content is generally higher than other rooms away from this gable. I am considering hacking off the render, sand blasting and then lime mortar pointing, do you think this will resolve the moisture readings inside the house? TIA