I have frost on the top of my foundation wall in the basement. I have read some things about using a spray foam to get rid of this, which is what I probably will do. I just can't figure out what causes it. It only comes in my storage room which has been dry-walled and insulated but no ceiling. (south east corner next to driveway) Mechanical room with furnace is the same idea (insulation/drywall no ceiling) but I get no frost there. Plus since I have a drop ceiling I checked at a few places around the rest of the basement and no moisture or frost. All the pockets between joists are stuffed with fibreglass insulation and cover with vapour barrier. it is the same though out the whole basement.
Generally when its not quite so cold I will just get condensation not frost in the same location but only in the same room/location. It is significant amount that I will actually get a puddle of water (very small, just enough to notice) at times coming from under the wall which is how I came to realise the frost problem.
What would cause do I get frost in this storage room? I have also checked with humidity with hygrometer, around 45% same as the rest of the house
Thanks for any feedback in advance
Cheers
Generally when its not quite so cold I will just get condensation not frost in the same location but only in the same room/location. It is significant amount that I will actually get a puddle of water (very small, just enough to notice) at times coming from under the wall which is how I came to realise the frost problem.
What would cause do I get frost in this storage room? I have also checked with humidity with hygrometer, around 45% same as the rest of the house
Thanks for any feedback in advance
Cheers