Thanks for all advice
I stripped back to the brick inside cos plaster was damp (survey said penetrating due to trapped water) , so can now count the bricks.
Outside above dampcourse is roughcast, which I have chipped away a small area of to check if cracks went into bricks & they run...
I just want to minimise any future movement of the cracked outer leaf before repairing the cracks and re-rendering. I thought tieing the leafs together properly might give extra strength/ stability
Help, I'm doing up a 1930's semi which I currently have stripped back to the brick inside. It is of 'solid' wall construction in so much as there is only a mortar width (12mm) gap between the inner and outer leaf of the brick wall, but I am worried about the quality of the brickwork which...