we have just bought a house it was built in 1984, we are decorating every room but in places the plaster is poor. I have noticed there are lines down the walls in places where plasterbords join and also where they were orginally taped at the joins the tape is coming away with plaster in neat strips. Round the tops of the walls where they meet the ceilings there are approx inch thick lines. How should i tackle these problems and what materials should i use etc
many thanks
many thanks