3 Season Room vs. 4 Season Room Addition

  

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We often get clients interested in a 3 season room. When we visit with the client we find out that what they really want is a 4 season room. What is the difference is the first question out. 

A 3 season room can look like a part of the house, however it will not have conditioned air, heat or a/c. It may have the same windows that would be in a house, double hung, casement....and so on. The room could have insulation in the walls and ceiling to help in colder climates to extend the time that the room could be used, or to help keep it some heat out in the summer months. Sometimes the 3 season room can be built over an existing deck, with a carpet or flooring put over the decking. 

A 4 season room is a room that will have full conditioned air. There should be special care taken to make sure the floor is insulated properly. The best way would be to put it on a slab or over a foundation, this does raise the investment though. This room will usually also have more windows than in the typical room. One other note is that in most municpalites once you have a conditioned air room, it then becomes taxable.  can be built on top of an existing deck, however special care would need to be taken to insulate the