Your entire residence should be a sanctuary that’s warm and toasty in the winter season and cool and comfortable in the summer. However, owners of some multi-level residences find the upper floor is stubbornly hotter or colder than the main floor.

This could simply be caused by the fact that most thermostats in a house are on the first floor, which is where people spend the most time—in the living room, kitchen, etc.—so they 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 difficulties can be solved fairly quickly while others might require more extensive and costly fixes. Here, the specialists at Dave's Diversified Services 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 feeling hotter than the downstairs can be chalked up to several factors. First, heat rises, so it’s natural for the second floor of a home to get hotter than the first floor. Lack of insulation in the attic or roof can make this worse by permitting 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 have difficulty cooling the upstairs sufficiently.

To fix these issues, homeowners could put in more insulation in the attic and make sure their home has adequate ventilation. If there’s a possibility the air conditioner is the ideal size for the home, call an experienced HVAC company like Dave's Diversified Services inspect the unit. A knowledgeable 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 extremely chilly upstairs, that could result in a frosty night for anyone whose bedrooms are on the upper floor. The most frequent causes of an upstairs not heating like it ought 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 upstairs. It’s important 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 fundamental role in disseminating conditioned air throughout different rooms of the building. However, issues with the ductwork can cause the upstairs being colder than the main level. A frequently reported reason for this is improper airflow balance. The ducts may not be the proper size or configuration, 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 placement of the supply and return vents. If there are fewer vents on the upper level or they aren't well placed, it can restrict air circulation and cause inferior heating or cooling. Additionally, leaks or gaps in the ductwork can lead to air loss, reducing 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 experts like the team at Dave's Diversified Services to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in more vents or adjusting existing ones can help increase airflow and ensure a better 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 home, an HVAC zoning system could be an effective solution.

An HVAC zoning system breaks the household 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 quite hot or extremely cold while the main floor is comfortable. By installing a  zoning system, homeowners can manage the temperature independently in each zone, enabling them to address specific hot or cold spots effectively.

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 enhance the comfort 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 the first floor.

A frequent reason for excess upper floor humidity is poor ventilation on the upper floor, which can produce higher humidity levels. As is often the case with temperature differences between floors, poor insulation or sealing in the attic or walls may allow 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 excess moisture in that section of a home.

To fix humidity problems, homeowners can increase ventilation by getting 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. Finding and repairing any leaks or plumbing issues is also extremely important.

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