My basement concrete slab has been cut to add some plumbing. Problem is that it was cut in such a way that there are no existing vapor barrier left to tie new ones into. Attaching photos for better understanding.
So the best I can do is just sort of lay it on there. What else can I do here?
I'm going to be putting on dricore on top of concrete slab anyway, should I not worry about vapor barriers?
The plastic barrier there is a damp proof membrane and its job is to prevent rising damp. Older properties don't have one of these resulting in that infamous damp basement smell. To repair a hole through a DPM, use a liquid DPM around the edges of the hole and then your new DPM patch can be effectively stuck on to it, allowing the barrier to remain continous without having to dig up more of the slab.
Alternatively, double sided jointing tape around the edges of the hole would also allow your barrier patch to stick to it as well, however, from experience of using this kind of tape, it's extremely awkward just given how sticky this stuff is.
