Inner leaf of cavity wall

[paulb]

I have recently purchased a fairly standard late 19th c. mid terrace. External it's stone built with a red brick inner leaf. The house was damp ex-rental vacant property so I investigated by hacking off the patchwork gypsum/polyfilla/plastic lined plaster board and found the red bricks to be wetter than an otters pocket and in pretty poor shape. My plan is to remove all bricks to the window sill (8 rows) and have them replaced (using lime mortar as this is used throughout the building). Has anyone had to do this and did you use bricks or product such as thermalite blocks. The wall will be finished, eventually, using Warmshell IWI

 

[Zebra]

Why replace the old bricks with modern ones? Why not just repoint, and investigate the cause of the damp?

 

[CliffordPope]

If it's a cavity wall then you need to be careful of dislodging debris or letting new mortar fall into the cavity.
I can see that taking down part of the inner wall allows you to inspect a bit of the cavity, but I suspect that pretty much all the wall might look like that.
But is it a cavity wall - victorian terrace?

 

[paulc]

Why replace the old bricks with modern ones? Why not just repoint, and investigate the cause of the damp?

And modern bricks will be a different size too. So you either end up with massive mortar joints, or such a small gap, you can't get the mortar in.