Water is the enemy of your home's walls, floors, and structure. Once inside, it can cause mildew and mold ormuch worsedry rot. That's why a properly made shower is critical to the integrity of a bathroom. The heavy flow of water raining down on the interior surfaces of a shower must be properly shed by the walls and drained away by the floor pan. In this section of HomeTips, we look at various types of showers and help with buying decisions if you're in the market for a prefabricated model. We also discuss important DIY tips for proper installation, care, and repair.