Drainage products used in conjuction with a waterproofing system prevent the accumulation of water and air underneath the waterproofing liner. This ensures that jobs such as basements and sports fields remain dry and ready for use. Drainge products to be used as a part of a waterproofing system come in various forms to suit project needs. Sheet drain, chimney drains and strip drains are all options to maintain the effectiveness of a waterproofing project.