Every floor in your home should be a refuge that’s warm and toasty in the cold months and cool and comfortable in the summer. However, families who live in some two-story homes find the upper floor is stubbornly hotter or colder than the main floor.

This could merely be caused by the fact that most thermostats in a house are on the main floor, which is where people spend the the majority of time—in the living room, kitchen, etc.—so as a result they tend to set the temperature according to how it feels on the first floor.

However, temperature discrepancies between the upstairs and downstairs could also be because of trouble with your HVAC system. Some of these challenges can be sorted out somewhat quickly while others might call for more extensive and costly fixes. Here, the specialists at Temperature Doctors Heating & Cooling will help you figure out why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is My Upstairs So Hot?

The phenomenon of the upstairs of a two-story home becoming hotter than the downstairs can be chalked up to several factors. Number one, heat rises, so it’s natural for the second floor of a home to get hotter than the ground floor. Poor insulation in the attic or roof can make this worse by permitting heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioning is not big enough to cool the entire home, causing it to struggle to cool the upstairs effectively.

To deal with these issues, homeowners could install extra insulation in the attic and make sure their home has adequate ventilation. If there’s a question of whether the air conditioner is the correct size for the home, call an experienced HVAC company like Temperature Doctors Heating & Cooling inspect the unit. A skilled professional also can help locate a unit that's better suited for your home if you are considering air conditioning installation or replacement.

Why Is My Upstairs So Cold/Not Heating?

When the downstairs of your home is warm, but it’s very cold upstairs, that makes for a very chilly night for anyone whose bedrooms are on the upper floor. The most prevalent explanations for an upstairs not heating like it ought to are the insulation levels and the ductwork.

Inadequate insulation lets cold air to leak through the home’s attic or walls and contribute to heat loss, causing colder temperatures upstairs. It’s crucial to make sure your home has a thick, level layer of insulation in the attic and adequate insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a very important role in distributing conditioned air throughout different locations of the building. However, troubles with the ductwork can cause the upstairs being colder than the main level. A common cause for this is improper airflow balance. The ducts may not be the correct size or configuration, which results in an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, leaving insufficient airflow—which is the heated air—on the upper level.

Another possible issue with the ductwork is the layout of the supply and return vents. If there are fewer vents on the upper story or they are not correctly installed, it can limit air circulation and cause inferior heating or cooling. In addition, leaks or gaps in the ductwork can lead to air loss, decreasing the overall efficiency of the HVAC system and making the temperature difference more pronounced.

To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by experienced professionals like the team at Temperature Doctors Heating & Cooling to identify any imbalances, leaks or inadequacies. Sealing leaks and adding additional vents or adjusting existing ones can help enhance airflow and ensure a more consistent temperature balance between the upstairs and downstairs.

What Do I Do to Fix a Hot/Cold Upstairs?

If your upstairs is hotter or colder than the lower floors of your residence, an HVAC zoning system could be an effective solution.

An HVAC zoning system separates the household into distinct zones, which each have their own thermostat and damper system so the homeowner can control the heating or cooling of each zone.

This system can be very helpful in scenarios where the upstairs of a multi-story home is too hot or extremely cold while the main floor is comfortable. By implementing a  zoning system, homeowners can regulate the temperature independently in each zone, enabling them to address specific hot or cold spots easily.

To learn more about an HVAC zoning system in Rockford, call Temperature Doctors Heating & Cooling. We’ve created and installed customized home comfort plans for many community members and are happy to show how an HVAC zoning system could benefit your home.

Why Is the Humidity So High Upstairs?

In addition to the upper story being hotter or colder than the rest of the house, another challenge in multi-floor homes is when the upstairs is more humid than the lower level.

A common cause for excess upper floor humidity is weak ventilation on the upper floor, which can cause greater humidity levels. As is often the case with temperature differences between floors, inadequate insulation or sealing in the attic or walls may permit warm, humid air from outside infiltrate the upstairs rooms. And, if there are any leaks or plumbing concerns on the upper floor, that can also create excessive moisture in that level of a home.

To address humidity problems, homeowners can add more ventilation by using fans or opening windows to promote airflow. Proper insulation  in the attic and better sealing the attic and walls can help prevent external moisture from entering the upstairs. Identifying and repairing any leaks or plumbing issues is also extremely important.

Depending on the levels of moisture found in the home, a whole-home dehumidifier could be another helpful tool to control humidity on the upper and lower floors.