Your entire residence should be a retreat that’s warm and comfy in the winter and cool and comfortable in the summer. However, residents in some multi-level residences 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 the majority of time—in the living room, kitchen, etc.—so they set the temperature according to how it feels on the first floor.

However, temperature differences between the upstairs and downstairs could also be due to trouble with your HVAC system. Some of these issues can be fixed relatively quickly while others might require more extensive and costly fixes. Here, the team at Freed Heating & Air Conditioning will help you figure out 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 getting 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 exacerbate this issue by permitting heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioner is not big enough to cool the entire home, causing it to fight to cool the upstairs adequately.

To deal with these issues, homeowners could install extra insulation in the attic and make sure their home has sufficient ventilation. If there’s a possibility the air conditioner is the correct size for the home, call an experienced HVAC company like Freed Heating & Air Conditioning inspect the unit. A knowledgeable 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 very cold upstairs, that can cause a frosty night for anyone whose bedrooms are on the upper floor. The most common causes of an upstairs not heating like it is supposed to are the insulation levels and the ductwork.

Inadequate insulation enables cold air to filter through the home’s attic or walls and contribute to heat loss, causing colder temperatures on higher floors. It’s crucial to make sure your home has a deep, 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 very important role in distributing conditioned air throughout different rooms of the building. However, problems with the ductwork can cause the upstairs being colder than the lower floor. A common reason for this is improper airflow balance. The ducts may not be the proper size or design, which results in an uneven distribution of air between the floors. This can cause more warm air to flow downstairs, which creates 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 floor or they aren't well placed, it can limit air circulation and cause inadequate heating or cooling. In addition, leaks or gaps in the ductwork can lead to air loss, reducing the overall efficiency of the HVAC system and exacerbating the temperature difference.

To understand why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by skilled experts like the team at Freed Heating & Air Conditioning to identify any imbalances, leaks or inadequacies. Sealing leaks and installing additional vents or adjusting existing ones can help improve airflow and ensure a more even 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 home, an HVAC zoning system could be a highly effective solution.

An HVAC zoning system separates the household into distinctive 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 effective in situations where the upstairs of a multi-story home is too hot or extremely cold while the main floor is comfortable. By investing in a  zoning system, homeowners can regulate the temperature independently in each zone, enabling them to address specific hot or cold spots effortlessly.

To learn more about an HVAC zoning system in Moline, call Freed Heating & Air Conditioning. 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 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 higher levels are more humid than downstairs.

A common reason for excess upper floor humidity is weak ventilation on the upper floor, which can cause increased humidity levels. As is often the case with temperature differences between floors, inadequate insulation or sealing in the attic or walls may allow warm, humid air from outside the house infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing issues on the upper floor, that can also cause excessive moisture in that area of a home.

To address humidity problems, homeowners can increase ventilation by installing fans or opening windows to promote airflow. Adding more 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 critical.

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