Every floor in your home should be a retreat that’s warm and toasty in the winter and cool and comfortable in the summer. However, owners of some two-story homes find the upper floor is stubbornly hotter or colder than the first floor.

This could merely be caused by the fact that 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 they 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 difficulties can be sorted out fairly quickly while others might necessitate more extensive and costly fixes. Here, the team at Van Haaften Plumbing & Heating will help you solve 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 feeling hotter than the downstairs can be traced to several factors. For starters, heat rises, so it’s normal 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 tackle these issues, homeowners could put in more insulation in the attic and make sure their home has adequate ventilation. If there’s concern the AC is the proper size for the home, call an experienced HVAC company like Van Haaften Plumbing & Heating inspect the unit. A skilled professional also can help select a unit that's better suited for your home if you want 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 prevalent reasons an upstairs not heating like it ought to are the insulation levels and the ductwork.

Inadequate insulation enables cold air to leak through the home’s attic or walls and contribute to heat loss, creating colder temperatures on higher floors. It’s essential to make sure your home has a thick, 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 distributing conditioned air throughout different areas of the building. However, problems with the ductwork can result in the upstairs being colder than the downstairs. A typical cause for this is improper airflow balance. The ducts may not be the right size or configuration, which results in 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 factor with ductwork is the location of the supply and return vents. If there are fewer vents on the upper story or they are poorly located, it can reduce air circulation and cause inadequate heating or cooling. Also, leaks or gaps in the ductwork can cause air loss, reducing the overall efficiency of the HVAC system and exacerbating the temperature difference.

To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork examined by experienced experts like the team at Van Haaften Plumbing & Heating to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in new vents or adjusting existing ones can help increase airflow and ensure a better 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 lower floors of your house, an HVAC zoning system could be an effective solution.

An HVAC zoning system divides the household into distinctive zones, which each have their own thermostat and damper system so the homeowner can control the heating or cooling of each zone.

This system can be very helpful in scenarios where the upstairs of a multi-story home is too hot or extremely cold while the main floor is comfortable. By implementing 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 Pella, call Van Haaften Plumbing & Heating. We’ve developed 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 My Upstairs So Humid?

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 lower level.

A common cause for excess upper floor humidity is weak 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 outside the house infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing problems on the upper floor, that can also cause excess moisture in that section of a home.

To deal with humidity problems, homeowners can improve ventilation by using fans or opening windows to promote airflow. Proper insulation  in the attic and better sealing the attic and walls can help stop external moisture from entering the upstairs. Finding 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 valuable tool to reduce humidity in your home.