In construction, a building or structure is waterproofed with the use of membranes and coatings to protect contents underneath or within, as well as protecting the structural integrity of the building. This membrane can come in many forms such  Bentonite Clay Waterproofing, Sheet Membranes, Liquid Applied Membranes, Below Slab Vapor Barriers, Cementitious Waterproofing, Waterstop, Protection Boards, and Chemical Grouts.