SHABAN CHEMICAL COMPOANY In order to seal your roof successfully, you must first start with a clean surface. Concrete is by far the easiest to repair, but just like any other material, it can cause cracks and leaks. Adding a waterproofing coat will help offset this decline and make the roof last much longer. However, if the seal does not stick well, you can. Take your time to do this thoroughly. The best way to know how often you need to reseal is to talk to your roofer. Ask about the type of roof you are using, the climate and the number of times it needs to be re-sealed. Some of the types of sealants listed in this article make claims about waterproofing, even going so far as to claim that they can withstand water pressure. If you add a coat of paint when installing a new roof instead of just repainting an old one, there are several reasons why this might be a good idea. Waterproofing ensures a fast – drying water resistant – application, which is immediately followed up. It can also be used when rain is imminent. One buyer of impregnating paints commented that it took advantage of its water-resistant properties, covered magnificently and went on smoothly. Another buyer said he found the roof seal was very good after sealing a crack with a lead seal. Black roof seal is also a top performance elastomer paint that restores the ability to form durable flexible membrane fittings to protect and reseal the entire roof, as well as maintain extensive expiration areas with a variety of roofers. Shaban Chemical provides its roof waterproofing services all over Pakistan that includes Karachi, Lahore, Multan, Hyderabad, Sukkar, Quetta, Islamabad, Peshawar and Balochistan.