Crawl space moisture barrier question.
Our crawl space is attached to the basement. I noticed that in one of the corners of the crawl space the soil is moist (no standing water). It's probably because of a clogged gutter, which has been fixed. Right now, I pulled the moisture barrier from that corner and I am running a humidifier 24/7. I want to install new moisture barrier and attach it to the walls, so my question is should I wait until the soil is completely dry and then install the barrier? How should I attach the new barrier to the walls? Tape? Adhesive? Is there anything else that I should check, other than the gutters, to make sure that there is no further moisture in the future? The house was built in 1987. Thank you for any advice, comments.