House painting is one of the most important home maintenance projects you can do. House painting upkeep and caulking helps protect your home from weather damage caused by water and sun. Neglecting obviously peeling exterior paint can lead to high siding replacement costs Paint is used to decorate, protect and prolong the life of natural and synthetic materials, and acts as a barrier against environmental conditions.aint is used to decorate all sorts of objects. Since pre-historic times, people have painted the inside walls of their houses to make them look attractive. Painting and decorating the exterior (outside) and interior (inside) of houses is an important industry in many countries. There are many types and colours of paint to chose from. All sorts of other objects are painted to make them attractive. This includes furniture, toys, tools and utensils, and street fittings. Sometimes things made of wood such as furniture are painted in decorative patterns. In some countries, many people enjoy decorating furniture and other small things like trays and boxes. This is one form of what is often called Folk Art. In other countries such as Japan, painting furniture is a very skilled profession and an antique piece of decorated furniture is very valuable. Other people enjoy the hobby of painting small objects such as model planes or soldiers.