Hi all,
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB B B B B B STORAGE ROOM B B B BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB----BBBBBBBB B B B FINISHED BASEMENT B
I have a storage room that runs the length of the front of the house under the porch. It's around 36' x 3' and has block walls.
I recently finished my basement (which this room shares a wall with) and found a lot of dripping condensation on the corrugated steel ceiling in the storage room. I posted here about it a while back and was told that I needed to coat/insulate the metal on the ceiling that the concrete porch pad was poured on.
Well... I went ahead and insulated that metal - coated it with the greatstuff spray foam and set rigid foamboard insulation sheets under the coating. Seems to have worked pretty well since I no longer have any visible condensation - at times it was dripping in there like a rainforest before I coated the ceiling.
While I was at it, I also thorosealed the walls - both the three under grade and the one that borders the basement. The dashes in the wall above represent an insulated steel door going from the storage area to the basement.
Anyway, it's all done now, but the results weren't what I expected... I put a humidity guage in there and while I don't see any visible water or condensation, it's pretty much stuck around 90% humidity. In the basement area it stays at around 50%-60%, but that goes up if I leave the door to the storage area open.
Any idea what could be causing this? I need to get that number down so that I can actually use that storage area for storage! :)
Thanks!!!