Using traditional lime mortars and putty, together with proper water management will allow you'r home to breathe and protect itself from the elements. Just as it did before the builders started to make it ill.
Does the roof need repairing ?
Do the gutters and downpipes need cleaning / repairing
Is cement based render letting in water and trapping it in the walls ?
Is the ground outside higher than the floor inside ?
Is you'r home warm, free from damp and build up of moisture ? NO - Why not ?
simple forgotten methods and solutions, tried and tested for hundreds of years. It's all common sense really