Residential - Enclosed Porch Updated. ANSI Compliant?
Private appraisal for family sale. Last MLS sale shows the area is an enclosed porch behind the dining area and kitchen (12’x20’) separated by a sliding glass door. Paneling on three walls and vinyl siding on the fourth wall, which is the rear wall of the house, kitchen window looks into the EP; open joists ceiling, carpeted floor, no ductwork, insulation level unknown.
Fast forward 15 years and the ceiling has been drywalled and the sliding glass door removed and an existing heat duct on the floor a few inches from where the sliding door was in the dining area back wall is the only heat/cool source to that 12’x20’ space. Insulation level still unknown.
Homeowner says that duct sufficiently heats/cools the EP which is now being used as a family room/kids play room, which is a questionable claim IMO. 20 degree winter days and 90 degree summer days can be common in my midwest state. Strictly following ANSI, I plan to call it an enclosed porch and expect homeowner pushback. ANSI also says it must be finished in a similar manner to rest of the house, which is debatable. Paneling is acceptable, per ANSI, and so is vinyl on the walls but can I interpret that as including exterior vinyl siding being an acceptable interior wall covering? The rest of the house is recently updated…new paint, new LVP, remodeled kitchen. It’s very nice, in contrast with this room.
I believe I know the answer here, but I’m looking for further ammunition to dispute the expected pushback and would appreciate any helpful input. I also don’t have enough data to say, one way or another, if the market would view this space as equal, temperature wise, to the rest of the house. In the spring and fall, maybe; harsh summer or winter, likely not. I say this assuming most buyers are unaware of our ductwork requirement saying the duct needs to be in the room and not just “near” it.
The entire room is also on 4 x 4 beams, 18 inches off the ground, with no footer or even skirting to enclose it to make it appear as if it’s over a crawl space, which further makes it look like an enclosed porch from the exterior.