paint blister brown liquid

Hey guys, So I want to paint the bay window area at the front of my terrace red brick house. It's got a masonry render on top and was painted by previous owners. However there is so much bubbling and a lot of loose rubble underneath. Quite a few parts of the wall feel soft and if you break the...

Hi all, Today I noticed a bubble forming underneath some paint on my living room wall which was applied over 2 years ago. Upon closer inspection It felt like there was water underneath, so I made a little hole and a load of brown sticky liquid seeped out. I cleaned it all out and forgot about...