Having an European origin and later a resident of the United States, the paving block sealer were used as an alternative replacement for the general concrete that was used in the construction of roofing. There are various types of the sealers namely the polyurethane, acrylic and water based sealers. While sealants help in protecting the roofs, the sealers also have some minor disadvantages. It is said that some sealants have the ability to cause damage to the environment as some chemicals can cause deteriorating effect on the atmosphere and hence one has to be very careful in choosing the sealers. The main advantage of using a paving block sealer is that it helps in preventing the growth of algae, dirt or other microbes on the paving and thereby making the cleaning process very simple. There are various advantages of using a paving sealer; firstly it helps in giving an appealing look the paving and by the application of the sealer, the paving becomes strong and thus it prevents the seepage of water or sand into it. It is also said the sealers help in protecting the paving from ant activities. Lastly, the sealers help the users in easy maintenance as special care need not be taken to take care of the roof paving. The sealants are available in various colors and they can be chosen based on the type of color the owner wants the paving to be thereby it helps in the additional beautification of the roofing. After all, it is our home and we have to take every possible effort to keep them beautiful.