The most common known causes of water damage are leaky plumbing, and leaking roofs, but there are mounds of other causes that are not as well known.

If you have a basement, and you have it insulated with fiberglass, it is easy for moisture to become trapped behind the walls, and air between one floor of the home and the basement floor can leak into them.

It is because of this that insulating your home with fiberglass is not recommended, nor is installing plastic sheeting, as it is capable of trapping just as much moisture. A good idea for the insulation is using blue board, as it allows the moisture to move about the wall freely and makes the wall better able to dry off.

Problems, however, can arise if the land your home is on is sloped towards its foundation. If water is flowing towards the home, as opposed to away the home, it can seep into the basement and cause serious damage to the structure of your home, and can cause sink holes, which can cause your house to sink.

You should especially be careful to have your ceilings properly insulated in a cold climate, on account of the fact that they are not, water can leak into your house by way of what are called ice dams.

In a warmer climate, flaws in air conditioning or air ducts can cause water damage by the formation of steam and humidity that likes to attach itself to things like roofing. And this build up can cause rotting on your roof as well as the infestation of mold, which can be harmful on one's respiratory system as well as many other sicknesses that may result.

Improperly shielded attic hatches are another chief offender of water damage to one's ceilings, as condensation is far more likely to gather in this manner.

Lighting fixtures should be as tight as humanly possible when you install them, especially the recessed kind and exhaust fans are not directed outside from the house, it should be, whether they are in the bathroom, or places of this nature. Exhaust fans should have vents to the outside so moisture does not condense and cause avoidable water damage.