High humidity in condo
Hello all, I've done all I can to try and fix this, so I really hope someone here can throw another idea at me.
I live in the first floor of a two story condo in San Francisco with a crawlspace underneath. We've been having really high humidity (65-70%) and it's starting to affect our clothes and give them a damp, musty smell.
First we thought the shower steam wasn't getting ventilated, so I tried replacing the bathroom fan during a renovation. But after a month of not using the shower and no lowering of the humidity, I realized it wasn't that.
Second I tried just getting a dehumidifier, but it didn't seem to do much.
Third I tried laying a 1 mil plastic mylar sheet in the crawlspace to try and trap the moisture. The ground underneath is mildly damp in places, and it seems to get a bit of circulation down there, but not a lot. After 5 days with the sheet, no change.
So...I'm fresh out of ideas, and I smell like my grandma's closet. I need help. I checked the upstairs neighbor's condo, and their humidity was ~40%, so it's just me. Outside humidity was 40%. Could I try spreading a desiccant in the crawlspace under the tarp? The thing is, I don't know if the ground is that wet to cause a 70% humidity.
Last edited by banpei; 05-31-2012 at 02:22 PM.