Your entire residence should be a refuge 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 just 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 as a result they tend to 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 trouble with your HVAC system. Some of these challenges can be sorted out fairly quickly while others might require more extensive and costly fixes. Here, the specialists at Select Comfort Systems will help you figure out 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 becoming hotter than the downstairs can be attributed to several factors. For starters, heat rises, so it’s natural for the second floor of a home to get hotter than the main floor. Poor 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 HVAC system is not powerful enough to cool the entire home, causing it to fight to cool the upstairs properly.

To deal with these issues, homeowners could put in extra insulation in the attic and make sure their home has proper ventilation. If there’s concern the air conditioning unit is the proper size for the home, call an experienced HVAC company like Select Comfort Systems inspect the unit. A knowledgeable professional also can help find a unit that's better suited for your home if you are considering air conditioning installation or replacement.

Why Is My Upstairs Always Cold/Not Heating?

When the downstairs of your home is warm, but it’s extremely chilly upstairs, that makes for a very chilly night for anyone whose bedrooms are on the upper floor. The most common explanations for an upstairs not heating like it ought to 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, resulting in colder temperatures on higher floors. 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 distributing conditioned air throughout different locations of the building. However, issues 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 right size or in the appropriate layout, resulting in an uneven distribution of air between the floors. This can cause more warm air to flow downstairs, leaving insufficient airflow—which is the heated air—on the upper story.

Another possible issue with the ductwork is the location of the supply and return vents. If there are fewer vents on the upper level or they are poorly positioned, it can restrict air circulation and cause substandard heating or cooling. Also, leaks or gaps in the ductwork can lead to air loss, lowering the overall efficiency of the HVAC system and making the temperature difference more pronounced.

To figure out why the upstairs is colder than the downstairs, homeowners should hve their ductwork inspected by skilled experts like the team at Select Comfort Systems to identify any imbalances, leaks or inadequacies. Sealing leaks and installing new 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 ground level of your house, an HVAC zoning system could be a useful solution.

An HVAC zoning system separates the residence into different 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 beneficial in instances where the upstairs of a multi-story home is too hot or extremely cold while the main floor is comfortable. By setting up a  zoning system, homeowners can manage the temperature independently in each zone, allowing them to address specific hot or cold spots easily.

To find out more about an HVAC zoning system in West Valley City, call Select Comfort Systems. 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 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 downstairs.

A typical reason for excess upper floor humidity is inadequate 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 let warm, humid air from outside the house infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing problems on the upper floor, that can also lead to excess moisture in that level of a home.

To correct humidity problems, homeowners can increase ventilation by getting 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. Locating 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 useful tool to manage humidity on the upper and lower floors.