Your entire home should be a refuge that’s warm and cozy in the winter season and cool and comfortable in the summer. However, residents in some multi-level residences find the upper floor is stubbornly hotter or colder than the main floor.

This could merely be because most thermostats in a house are on the main 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 discrepancies between the upstairs and downstairs could also be caused by problems with your HVAC system. Some of these challenges can be solved fairly quickly while others might require more extensive and costly fixes. Here, the professionals at The Frazier Company will help you determine why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is It Hot Upstairs?

The phenomenon of the upstairs of a two-story home becoming hotter than the downstairs can be traced to several factors. First, heat rises, so it’s common for the second floor of a home to get hotter than the main floor. Lack of 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 big enough to cool the entire home, causing it to fight to cool the upstairs sufficiently.

To fix these issues, homeowners could add more insulation in the attic and make sure their home has adequate ventilation. If there’s a possibility the air conditioning unit is the right size for the home, call an experienced HVAC company like The Frazier Company inspect the unit. A knowledgeable professional also can help select a unit that's better suited for your home if you require 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 can cause a very chilly night for anyone whose bedrooms are on the upper floor. The most frequent reasons an upstairs not heating like it should are the insulation levels and the ductwork.

Inadequate insulation lets cold air to filter 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 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 critical role in disseminating conditioned air throughout different locations of the building. However, troubles with the ductwork can cause the upstairs being colder than the lower floor. A typical explanation for this is improper airflow balance. The ducts may not be the proper size or in the appropriate layout, which results in an uneven distribution of air between the floors. This can cause more warm air to flow downstairs, causing insufficient airflow—which is the heated air—on the upper story.

Another potential problem area in the ductwork is the placement of the supply and return vents. If there are fewer vents on the upper floor or they are poorly located, it can restrict air circulation and cause inadequate heating or cooling. Also, leaks or gaps in the ductwork can lead to air loss, decreasing the overall efficiency of the HVAC system and exacerbating the temperature difference.

To understand why the upstairs is colder than the downstairs, homeowners should hve their ductwork examined by skilled experts like the team at The Frazier Company to identify any imbalances, leaks or inadequacies. Sealing leaks and adding new vents or adjusting existing ones can help enhance airflow and ensure a more consistent temperature balance between the upstairs and downstairs.

How You Can Fix a Hot or Cold Upstairs?

If your upstairs is hotter or colder than the rest of your residence, an HVAC zoning system could be a useful solution.

An HVAC zoning system divides the residence 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 particularly effective in instances where the upstairs of a multi-story home is quite hot or too cold while the main floor is comfortable. By installing a  zoning system, homeowners can control 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 Omaha, call The Frazier Company. We’ve developed 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 upstairs is more humid than the first floor.

A typical cause 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, inadequate insulation or sealing in the attic or walls may permit warm, humid air from outdoors infiltrate the upstairs rooms. In addition, if there are any leaks or plumbing issues on the upper floor, that can also cause extra moisture in that area of a home.

To manage humidity problems, homeowners can increase ventilation by installing fans or opening windows to promote airflow. Appropriate levels of insulation  in the attic and better sealing the attic and walls can help protect against 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 useful tool to reduce humidity in your home.