Your entire 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 rooms on ground level.

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 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 because of issues with your HVAC system. Some of these issues can be fixed somewhat quickly while others might require more extensive and costly fixes. Here, the team at The Frazier Company will help you solve 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 chalked up to several factors. Number one, heat rises, so it’s natural for the second floor of a home to get hotter than the ground floor. Not enough 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 conditioning is not strong enough to cool the entire home, causing it to have difficulty cooling the upstairs adequately.

To tackle these issues, homeowners could install extra insulation in the attic and make sure their home has proper ventilation. If there’s a possibility the air conditioning unit is the right size for the home, call an experienced HVAC company like The Frazier Company inspect the unit. A qualified 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 Colder/Not Heating?

When the downstairs of your home is warm, but it’s freezing upstairs, that makes for an ice-cold night for anyone whose bedrooms are on the upper floor. The most prevalent causes of an upstairs not heating like it ought to are the insulation levels and the ductwork.

Inadequate insulation allows cold air to leak through the home’s attic or walls and contribute to heat loss, creating colder temperatures upstairs. It’s essential to make sure your home has a solid, 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 fundamental 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 frequently reported explanation for this is improper airflow balance. The ducts may not be the correct size or design, creating an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, causing insufficient airflow—which is the heated air—on the upper level.

Another possible issue with the ductwork is the layout of the supply and return vents. If there are fewer vents on the upper floor or they aren't well positioned, it can restrict air circulation and cause substandard heating or cooling. Also, leaks or gaps in the ductwork can lead to air loss, decreasing the overall efficiency of the HVAC system and actually making the temperature difference worse.

To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by trusted professionals like the team at The Frazier Company 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.

What Do I Do to Fix a Hot/Cold Upstairs?

If your upstairs is hotter or colder than the ground level of your residence, an HVAC zoning system could be an effective solution.

An HVAC zoning system separates the home into distinct 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 particularly helpful in instances where the upstairs of a multi-story home is quite hot or extremely cold while the main floor is comfortable. By setting up a  zoning system, homeowners can control the temperature independently in each zone, enabling them to address specific hot or cold spots easily.

To find out more about an HVAC zoning system in Omaha, call The Frazier Company. 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 it So Humid 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 higher levels are more humid than the first floor.

A typical cause for excess upper floor humidity is inadequate 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 permit warm, humid air from outdoors infiltrate the upstairs rooms. In addition, if there are any leaks or plumbing concerns on the upper floor, that can also create excess moisture in that area of a home.

To fix humidity problems, homeowners can increase ventilation by using fans or opening windows to promote airflow. Appropriate levels of 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 worthwhile tool to control humidity in the residence.