Can I build a brick wall against a rendered wall? How does it join so as not to encourage damp inside the house? I'm imagining big bolts through the first bricks with a generous application of some kind of damp proofing gluey stuff in the hole?
Might be best to cut through the render and into a mortar joint then put lead in that joint that covers the top of your wall (I guess onto a roof if that's what the wall is holding then mortar the lead in.
Can I build a brick wall against a rendered wall? How does it join so as not to encourage damp inside the house? I'm imagining big bolts through the first bricks with a generous application of some kind of damp proofing gluey stuff in the hole?