A sunroom is a room comprised mostly of glass. It is typically heated and cooled on demand and considered a patio or “sunroom” in the building code. A sunroom is typically not subject to all of the code requirements that a conditioned livable and habitable space would be (i.e. Heating, ventilation and air conditioning). Overall, a sunroom is typically only a portion of the cost of a room addition of the same size. And, a sunroom is meant to typically be different from the rest of the house. It is a room that you can enjoy the outdoors…indoors. A sunroom instantly becomes the favorite room in the house.