One of the most necessary things in a building construction is foundation waterproofing membrane. It will prevent any water penetration into foundations. It is made from a plastic that is totally waterproof and rubber. There are other professional materials in the formation, too. It is used for foundations, buildings, roofs, basements, walls, etc. the best exterior foundation waterproofing systems work well when they are installed correctly. Installation is very important when working with membrane. It must cover the intended area completely and perfectly. Water will penetrate the smallest parts that are not covered. Therefore, installation is half of the work for a good membrane to work. It is possible to use waterproofing membranes in both interior and exterior sides of a place. In either case, the membrane must have a high quality to work for many years.