Your entire residence should be a retreat that’s warm and comfy in the winter and cool and comfortable in the summer. However, families who live in some homes with multiple levels find the upper floor is stubbornly hotter or colder than the main floor.

This could merely be because most thermostats in a house are on the ground floor, which is where people spend the greatest amount 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 due to problems with your HVAC system. Some of these difficulties can be resolved fairly quickly while others might necessitate more extensive and costly fixes. Here, the specialists at Arizona Comfort Systems 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 becoming 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 main floor. Poor insulation in the attic or roof can make this worse by letting 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 fight to cool the upstairs sufficiently.

To deal with these issues, homeowners could add additional insulation in the attic and make sure their home has sufficient ventilation. If there’s a question of whether the AC is the right size for the home, call an experienced HVAC company like Arizona Comfort Systems inspect the unit. A knowledgeable professional also can help select a unit that's better suited for your home if you require 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 frosty night for anyone whose bedrooms are on the upper floor. The most frequent explanations for 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, causing colder temperatures upstairs. It’s crucial to make sure your home has a deep, level layer of insulation in the attic and adequate insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a critical role in disseminating conditioned air throughout different locations of the building. However, troubles with the ductwork can result in the upstairs being colder than the main level. A typical explanation for this is improper airflow balance. The ducts may not be the right size or configuration, creating an uneven distribution of air between the floors. This can cause more warm air to go downstairs, which creates insufficient airflow—which is the heated air—on the upper story.

Another potential problem area in 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 reduce air circulation and cause substandard heating or cooling. In addition, leaks or gaps in the ductwork can cause air loss, decreasing the overall efficiency of the HVAC system and making the temperature difference more pronounced.

To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork examined by experienced professionals like the team at Arizona Comfort Systems to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in additional vents or adjusting existing ones can help improve 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 ground level of your home, an HVAC zoning system could be a great solution.

An HVAC zoning system separates the residence 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 beneficial in instances where the upstairs of a multi-story home is quite hot or really cold while the main floor is comfortable. By installing a  zoning system, homeowners can manage the temperature independently in each zone, making it possible for them to address specific hot or cold spots easily.

To discover more about an HVAC zoning system in Sierra Vista, call Arizona Comfort Systems. We’ve designed 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 it So Humid Upstairs?

In addition to the upper story being hotter or colder than the rest of the house, another challenge in multi-floor homes is when the upstairs is more humid than the first floor.

A frequent reason for excess upper floor humidity is poor ventilation on the upper floor, which can cause higher 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 outdoors infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing problems on the upper floor, that can also create unwanted moisture in that section of a home.

To manage 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. Identifying 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 valuable tool to control humidity on the upper and lower floors.