Waterproofing is a way to prevent water from getting inside your building and to help protect your home from potential water damage.
Proper waterproofing in wet areas is absolutely vital – Water damages plaster, flooring, timber and building structures. Water creates mould, fungi, and rot damage. Water attracts termites to timber and do some heartbreaking damage to a house. The worst bit about this kind of damage is that you won’t normally realize it’s happening until the worst of the damage has already been done.
Waterproofing involves introducing a liquid membrane onto areas that are likely to see water, so as to create a kind of ‘sealed’ area. Obviously the purpose is to help contain any water that might leak out (perhaps through failed grouting or joins, or leaky plumbing fixtures), so that it doesn’t cause any damage.