Every floor in your home should be a sanctuary that’s warm and cozy in the winter season and cool and comfortable in the summer. However, owners of some homes with multiple levels find the upper floor is stubbornly hotter or colder than the rooms on ground level.

This could merely be due to the fact 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 discrepancies between the upstairs and downstairs could also be due to issues with your HVAC system. Some of these issues can be sorted out fairly quickly while others might necessitate more extensive and costly fixes. Here, the specialists at Farris Heating & Air will help you solve 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 feeling hotter than the downstairs can be attributed to several factors. Number one, heat rises, so it’s natural for the second floor of a home to get hotter than the first floor. Insufficient insulation in the attic or roof can exacerbate this issue 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 adequately.

To fix these issues, homeowners could add more insulation in the attic and make sure their home has proper ventilation. If there’s concern the air conditioning unit is the ideal size for the home, call an experienced HVAC company like Farris Heating & Air inspect the unit. A knowledgeable professional also can help find a unit that's better suited for your home if you require air conditioning installation or replacement.

Why Is My Upstairs Colder/Not Heating?

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

Inadequate insulation allows cold air to leak through the home’s attic or walls and contribute to heat loss, causing colder temperatures on the upper levels. It’s important to make sure your home has a deep, 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 locations of the building. However, troubles with the ductwork can result in the upstairs being colder than the lower floor. A frequently reported explanation for this is improper airflow balance. The ducts may not be the proper size or design, creating an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, causing insufficient airflow—which is the heated air—on the higher floors.

Another factor with ductwork is the layout of the supply and return vents. If there are fewer vents on the upper level or they aren't well installed, it can limit air circulation and cause inadequate heating or cooling. Additionally, leaks or gaps in the ductwork can cause air loss, reducing the overall efficiency of the HVAC system and actually making the temperature difference worse.

To understand why the upstairs is colder than the downstairs, homeowners should hve their ductwork examined by experienced HVAC pros like the team at Farris Heating & Air to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in more vents or adjusting existing ones can help enhance airflow and ensure a better 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 rest of your home, an HVAC zoning system could be an effective solution.

An HVAC zoning system breaks the residence into distinctive 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 particularly helpful in scenarios where the upstairs of a multi-story home is quite hot or really cold while the main floor is comfortable. By installing a  zoning system, homeowners can regulate the temperature independently in each zone, making it possible for them to address specific hot or cold spots effectively.

To learn more about an HVAC zoning system in Bartlesville, call Farris Heating & Air. We’ve developed and installed customized home comfort plans for many community members and are happy to show how an HVAC zoning system could enhance the comfort in your home.

Why Is it So Humid Upstairs?

In addition to the upper story being hotter or colder than the rest of the house, another problem in multi-floor homes is when the higher levels are more humid than downstairs.

A common reason for excess upper floor humidity is weak ventilation on the upper floor, which can result in 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. In addition, if there are any leaks or plumbing issues on the upper floor, that can also create extra 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. Adding more insulation  in the attic and better sealing the attic and walls can help protect against external moisture from entering the upstairs. Finding 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 valuable tool to control humidity in your home.