My new concrete garage was poured over a heavy moisture barrier that i witnessed being used.
Moisture barrier in garage.
Most garages don t need vapor barriers because the amount of vapor that diffuses through garage walls ceilings and the floor is not enough to cause wet walls that result in moisture damages.
A smart vapor retarder is a vapor retarder material with the unique ability to react to changes in relative humidity by altering its physical structure.
However if you live in a cold climate zone such as alaska it s a good idea to install a vapor barrier on the warm in winter side of the wall.
This material adapts to let moisture out of the wall whether the humidity levels are higher on the outside of the wall winter or the inside summer.
Ceiling vapor barriers are a bad idea because they keep water vapor trapped inside the garage.
The moisture that appears on the new floor about a foot from the wall.
Is this likely to be condensation that is more common with new concrete.
I have an unfinished garage.
Use a vapor barrier.
Proper installation of a wall vapor barrier or using insulation products with a built in vapor barrier will reduce garage condensation a vapor barrier can also be used to cover the floor but avoid using it on garage ceilings.
Doing this will only trap water vapor inside your garage.