I finished a room in my basement in a hurry because we had someone coming to live with that needed a room. The room has two outside walls, and is located on the lowest basement leel of the house. The walls are 2x4 framed above the block, insulated, covered in poly, then sheetrock and paint. I tapped off the main heat duct and put a vent low in one inside wall. Here's the problem (I think) I didn't install a cold-air return... I'm getting water streaks in the paint starting at ceiling level that I've deduced are caused by condensation because there's no return air path... am I right about this!? I've puzzled for the longest time about this!
No announcement yet.
Condensation on basement sheetrock walls