I need some expert opinions. I have a client that installs sun rooms (aluminum framing, glass windows, composite roof structure). We now have a new building code in effect in Florida (The Florida Building Code). Previously, these rooms were not treated as "additions" to the home because the room was seperated by an already existing exterior door and was not heated or air conditioned. However, under the new code the "Existing Building" chapter has become more detailed (no direct mention of the sun rooms) effectively clarifying what was in the previous codes (really no change just clarifications on areas, etc.). My question is  do you think sun rooms should be treated the same way as say adding a fourth bedroom? The definition of habitable space is a space in a structure for living, sleeping, eating, or cooking. Bathrooms, toilets, closets, screen enclosures, halls, storage and utility facitilities and similar are excluded, but I know you could do all of the above in those areas as well. One last point, the rooms are designed for the current code wind loads, but the code also requires shutters for certain areas. Should these sun rooms require shutters since they are seperated by the exterior wall/door?
Sorry so long.