Some of the most common causes of dampness along bathroom walls are Leaking pipes, gaps between multiple fittings, cracked tiles, improper or old grouting between tiles. More often than not, the dampness reflects on the walls adjoining the bathroom such as bedroom wall. The best solution for such issues is to use Asian Paints Dampblock 2K and Smartcare Tile Grouts for solving waterproofing issues for the long term.