Your entire residence should be a retreat that’s warm and toasty in the winter season and cool and comfortable in the summer. However, owners of some multi-level residences find the upper floor is stubbornly hotter or colder than the first floor.

This could just be because most thermostats in a house are on the ground floor, which is where people spend the most time—in the living room, kitchen, etc.—so they set the temperature according to how it feels on the first floor.

However, temperature variations between the upstairs and downstairs could also be due to trouble with your HVAC system. Some of these difficulties can be resolved somewhat quickly while others might necessitate more extensive and costly fixes. Here, the team at MPC Heating & Cooling will help you determine why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is It Hotter Upstairs?

The phenomenon of the upstairs of a two-story home getting hotter than the downstairs can be attributed to several factors. Number one, heat rises, so it’s normal for the second floor of a home to get hotter than the first floor. Not enough insulation in the attic or roof can worsen this problem by permitting heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioning is not powerful enough to cool the entire home, causing it to have difficulty cooling the upstairs properly.

To deal with these issues, homeowners could install extra insulation in the attic and make sure their home has proper ventilation. If there’s concern the AC is the ideal size for the home, call an experienced HVAC company like MPC Heating & Cooling inspect the unit. A qualified professional also can help select a unit that's better suited for your home if you need air conditioning installation or replacement.

Why Is My Upstairs So Cold/Not Heating?

When the downstairs of your home is warm, but it’s extremely chilly upstairs, that could result in an ice-cold night for anyone whose bedrooms are on the upper floor. The most frequent causes of an upstairs not heating like it should are the insulation levels and the ductwork.

Inadequate insulation enables cold air to filter through the home’s attic or walls and contribute to heat loss, creating colder temperatures on the upper levels. It’s crucial to make sure your home has a thick, level layer of insulation in the attic and appropriate insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a fundamental role in circulating conditioned air throughout different areas of the building. However, troubles with the ductwork can result in the upstairs being colder than the main level. A frequently reported reason for this is improper airflow balance. The ducts may not be the correct size or configuration, causing an uneven distribution of air between the floors. This can cause more warm air to go downstairs, leaving insufficient airflow—which is the heated air—on the upper story.

Another potential problem area in the ductwork is the layout of the supply and return vents. If there are fewer vents on the upper story or they aren't well positioned, it can restrict air circulation and cause substandard heating or cooling. In addition, leaks or gaps in the ductwork can allow air loss, reducing 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 examined by skilled experts like the team at MPC Heating & Cooling to identify any imbalances, leaks or inadequacies. Sealing leaks and installing more vents or adjusting existing ones can help improve airflow and ensure a more even temperature balance between the upstairs and downstairs.

Fixing the Hot or Cold Upstairs Problem?

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

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

This system can be especially helpful in instances where the upstairs of a multi-story home is very hot or extremely cold while the main floor is comfortable. By investing in a  zoning system, homeowners can regulate the temperature independently in each zone, making it possible for them to address specific hot or cold spots easily.

To learn more about an HVAC zoning system in Chadron, call MPC 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 work in 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 upper floors are more humid than the first floor.

A frequent explanation for excess upper floor humidity is inadequate ventilation on the upper floor, which can cause increased humidity levels. As is often the case with temperature differences between floors, poor 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 problems on the upper floor, that can also lead to excessive moisture in that area of a home.

To deal with humidity problems, homeowners can improve 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 critical.

Depending on the levels of moisture found in the home, a whole-home dehumidifier could be another valuable tool to manage humidity in your home.