Your entire residence should be a refuge that’s warm and cozy in the winter and cool and comfortable in the summer. However, residents in some homes with multiple levels find the upper floor is stubbornly hotter or colder than the first floor.

This could simply be due to the fact most thermostats in a house are on the first floor, which is where people spend the greatest amount of time—in the living room, kitchen, etc.—so it makes sense to 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 issues with your HVAC system. Some of these difficulties can be resolved relatively quickly while others might call for more extensive and costly fixes. Here, the professionals at Siloam Springs Heating & AC will help you solve 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 getting hotter than the downstairs can be traced to several factors. First, heat rises, so it’s natural 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 strong enough to cool the entire home, causing it to struggle to cool the upstairs effectively.

To address these issues, homeowners could add additional insulation in the attic and make sure their home has sufficient ventilation. If there’s a question of whether the air conditioner is the correct size for the home, call an experienced HVAC company like Siloam Springs Heating & AC inspect the unit. A qualified 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 Colder/Not Heating?

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

Inadequate insulation permits cold air to filter 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 deep, level layer of insulation in the attic and proper insulation in the walls to keep the cold out and the heat inside.

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

Another potential problem area in the ductwork is the location of the supply and return vents. If there are fewer vents on the upper level or they are not correctly installed, it can limit air circulation and cause inferior heating or cooling. Additionally, leaks or gaps in the ductwork can cause air loss, lowering 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 trusted experts like the team at Siloam Springs Heating & AC to identify any imbalances, leaks or inadequacies. Sealing leaks and installing new vents or adjusting existing ones can help enhance airflow and ensure a more even 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 home, an HVAC zoning system could be an effective solution.

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

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

To discover more about an HVAC zoning system in Siloam Springs, call Siloam Springs Heating & AC. We’ve designed 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 My Upstairs So Humid?

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

A frequent reason for excess upper floor humidity is inadequate ventilation on the upper floor, which can produce increased humidity levels. As is often the case with temperature differences between floors, insufficient insulation or sealing in the attic or walls may permit warm, humid air from outside the house infiltrate the upstairs rooms. In addition, if there are any leaks or plumbing problems on the upper floor, that can also cause excess moisture in that level of a home.

To manage humidity problems, homeowners can increase ventilation by installing 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 imperative.

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