Your entire residence should be a retreat that’s warm and comfy in the winter 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 first floor.

This could simply be because 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 as a result they tend to set the temperature according to how it feels on the first floor.

However, temperature variations between the upstairs and downstairs could also be caused by trouble with your HVAC system. Some of these difficulties can be solved fairly quickly while others might require more extensive and costly fixes. Here, the team at Dave's Diversified Services will help you figure out 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 attributed to several factors. First, heat rises, so it’s common for the second floor of a home to get hotter than the first floor. Poor 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 conditioner is not powerful enough to cool the entire home, causing it to fight to cool the upstairs adequately.

To fix these issues, homeowners could put in additional insulation in the attic and make sure their home has adequate ventilation. If there’s a question of whether the AC is the ideal size for the home, call an experienced HVAC company like Dave's Diversified Services inspect the unit. A skilled professional also can help locate a unit that's better suited for your home if you require air conditioning installation or replacement.

Why Is My Upstairs Always Cold/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 frequent explanations for an upstairs not heating like it is supposed to are the insulation levels and the ductwork.

Inadequate insulation permits cold air to leak through the home’s attic or walls and contribute to heat loss, resulting in colder temperatures on higher floors. It’s essential 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 very important role in disseminating conditioned air throughout different areas of the building. However, problems with the ductwork can cause the upstairs being colder than the downstairs. A common explanation for this is improper airflow balance. The ducts may not be the right size or design, causing an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, leaving insufficient airflow—which is the heated air—on the higher floors.

Another possible issue with the ductwork is the layout of the supply and return vents. If there are fewer vents on the upper story or they aren't well installed, it can restrict air circulation and cause inferior heating or cooling. Additionally, leaks or gaps in the ductwork can allow air loss, reducing 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 checked by trusted experts like the team at Dave's Diversified Services to identify any imbalances, leaks or inadequacies. Sealing leaks and adding more vents or adjusting existing ones can help increase 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 home, an HVAC zoning system could be a useful solution.

An HVAC zoning system divides the household 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 especially helpful in scenarios where the upstairs of a multi-story home is too hot or too cold while the main floor is comfortable. By investing in a  zoning system, homeowners can control the temperature independently in each zone, allowing them to address specific hot or cold spots easily.

To learn more about an HVAC zoning system in Front Royal, call Dave's Diversified Services. We’ve created and installed customized home comfort plans for many community members and are happy to show how an HVAC zoning system could benefit 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 issue in multi-floor homes is when the upstairs is more humid than the first floor.

A frequent reason for excess upper floor humidity is inadequate ventilation on the upper floor, which can cause 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 concerns on the upper floor, that can also cause extra moisture in that level of a home.

To address humidity problems, homeowners can add more ventilation by getting 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. 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 reduce humidity on the upper and lower floors.