Waterproofing in swimming pools is done in different methods. This differs from the use of liners, or to coat the bottom of a pool with concrete or plaster. Learn more in this blog post.
Roofs are made to withstand extreme and rough weather conditions, sunlight, and rainfall. These harsh conditions can degrade the toughness of roofs. See this post to know more about roof waterproofing
Most of the basements in the UAE are below grade so they are more vulnerable to excess moisture and water damage. See this blog post to see why the basement suffers most.
To stop the penetration of water into the structure, waterproofing is done to make the structure water-resistant from the roof to the basement. See this blog post to know more about waterproofing and its types.