r/azores • u/ben_wal_journo • 7h ago
Looking for Advice on Basement Renovation on Faial
So, this might a bit of an odd question for this sub. This is one of the walls in our basement in our house in the Azores. Very humid and salty climate. There are a lot of cracks in between the natural stones that the walls are built from. Every week I'm sweeping up loads of debris from the plaster that's crumbling out. I'd like to cover up the gaps in between the stones with a grout that does not cause any new problems like growing mold, etc. What materials would you recommend I use for this?