After standing up to it for a century bacterial processes and acidity of rain can wreak havoc on foundations. This combined with improper drainage or damaged weeper systems can cause the sever deterioration of lime mortar on the building. Slowly water can work its way into the wall breaking down the lime mortar and allowing soil to migrate into the joints of the stonework. This maintains the foundation in a state of continuous saturation. We have been able to consolidate many rubble foundations by breaking out the deteriorated mortar and often soil then repointing with an appropriate mix of lime mortar.