We are redoing our basement and would like some advise on what is the best sealant for our old stone wall foundation. Some changes we've made to avoid moisture and mold growth is , put eves and gutters up outside, built up around outside basement foundation but would like to avoid moisture from coming onto drywall from old stone basement walls. What is the best sealant for stone wall basement foundation before insulation and drywalling? Will this help us rid of centipedes? Thank you for your time!