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, residents in some two-story homes find the upper floor is stubbornly hotter or colder than the main floor.

This could simply be due to the fact 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 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 because of issues with your HVAC system. Some of these issues can be fixed fairly quickly while others might require more extensive and costly fixes. Here, the professionals at Stephen Hurst Pack Heating and Cooling will help you determine 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 feeling 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 first floor. Lack of insulation in the attic or roof can worsen this problem by allowing 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 tackle these issues, homeowners could install more insulation in the attic and make sure their home has adequate ventilation. If there’s a possibility the air conditioning unit is the proper size for the home, call an experienced HVAC company like Stephen Hurst Pack Heating and Cooling inspect the unit. A knowledgeable professional also can help find a unit that's better suited for your home if you want air conditioning installation or replacement.

Why Is My Upstairs Colder/Not Heating?

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

Inadequate insulation enables cold air to seep through the home’s attic or walls and contribute to heat loss, creating colder temperatures on higher floors. It’s crucial to make sure your home has a solid, 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 very important role in disseminating conditioned air throughout different rooms of the building. However, problems with the ductwork can cause the upstairs being colder than the lower floor. A frequently reported cause for this is improper airflow balance. The ducts may not be the right size or design, 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 higher floors.

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 are poorly positioned, it can reduce air circulation and cause inferior heating or cooling. Also, leaks or gaps in the ductwork can allow air loss, decreasing the overall efficiency of the HVAC system and actually making the temperature difference worse.

To figure out why the upstairs is colder than the downstairs, homeowners should hve their ductwork examined by skilled professionals like the team at Stephen Hurst Pack Heating and 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 residence, an HVAC zoning system could be a highly effective solution.

An HVAC zoning system divides the residence into distinct 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 useful in scenarios where the upstairs of a multi-story home is too hot or really 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 effortlessly.

To find out more about an HVAC zoning system in Circleville, call Stephen Hurst Pack Heating and 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 problem in multi-floor homes is when the upper floors are more humid than downstairs.

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

To address humidity problems, homeowners can increase 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 prevent external moisture from entering the upstairs. Locating 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 worthwhile tool to control humidity in the residence.