my house (built in 1908) has brand new windows and doors and HVAC with whole home humidifier (kept at 35%) nothing gets sweaty or anything, but it's just always cold. Like, as soon as the furnace shuts off it feels instantly cold again. I'm assuming this is just because I have no insulation in the walls, right?
I insulated the attic over the summer when we replaced the roof, also put in roof vents and eave vents, which helped keep the upstairs cool on the hot days. I'm thinking the next step is to insulate the basement somehow, because the floors on the first floor are ice cold. any suggestos on this? batt insulation in between the joists? spray on?