Are attic rooms cold in winter?

Yes, attic rooms can be cold in winter if not properly insulated, heated, and ventilated, because attics are at top of house directly under roof where heat rises but also escapes quickly through roof if insulation is insufficient. Attic rooms often have sloped ceilings and knee walls that may have gaps in insulation, leading to drafts and cold spots. If attic conversion was done without adequate insulation, vapor barriers, and HVAC extension, room will feel cold in winter and hot in summer. Properly finished attic rooms with adequate insulation in walls, floor, and roof, good windows, and dedicated heating source like extension of central heating or mini split can be comfortable year round. However, many older attic rooms lack sufficient insulation and heating, making them colder than lower floors. Factors like roof leaks, poor air sealing, and lack of heating vents contribute to cold. So whether attic room is cold depends on quality of conversion and insulation, but unconverted storage attics are typically coldest part of house in winter.