Right, this year I am hoping to sort the house out a bit more than I have the last 13 years. As you all know, I'm not really good at explaining stuff, but I'll give it a go. One of the things needed is a damp course. This house/home was built in 1890, it is old, doesn't look like it's loved, but it is. I've been told that the walls need to be 'tanked'. Have bitchamen (int that tar?) spread over the walls, then plaster put on top. Will this cause more work in the future, or is it ok to use on a home this old? Last thing I need is to spend a fortune having it done, then 5 years down the line, find out it's caused more damage than needed. Please don't use technical jargon, i'm far from stupid, but would like stuff explained in a way that's easy to understand.