moisutre

My polycarbonate leanto I have decided to insulate by means of adding wooden Batons and stapled breathable insulation on to them. There is a gap of about 2cm from the insulation and the polycarbonate sheets and I intend to fit in ceiling plasterboard flush up against the insulation, leaving the...

Hello I was going to put some insulation on my internal wall of my bathroom before I fix the mermaid board to the batons. I was just thinking do I need to seal the wall with PVA glue? Also do I need a plastic sheet between my wall and the insulation to stop moisture getting through? The wall is...