poly bead

Good evening everyone. Thanks for a great forum. Our home is a medium to large 1930's/40's semi-detached, made of bottom-half stone and top-half pebble. I'm not sure if this might be important info, but our home elevation is approx 675ft above sea level, although it is on a long flat road...

I have an old chimney stack up from the kitchen and through to the bathroom. The kitchen stack part has already been removed (before we moved in), the bathroom stack is still there, not ventilated and was - i think - responsible for a big damp patch coming out on the adjoining bedroom wall. I...