Dear James: I have an old house with plaster walls and many cracks that need to be repaired. How can I fix these so they stay fixed and are invisible? — Julianne T. Dear Julianne: Many older houses ...
A: It depends on the type and size of the crack. Hairline cracks take only a little patching plaster. Larger cracks require reinforcement with mesh tape. Cracks larger still, where the plaster keys ...