Vapor barrier seal
I have a question about basement vapor barrier. My home is 2 years old. Basement is pored concrete and the builder has insulated everything. A few days ago I noticed that the plastic membrane is not tightly attached at the floor, maybe the caulking sealant is coming off. I attached 2 pictures. My concern is, does the vapor barrier has to be air tight? is it even possible? or is it normal to have some open areas?