Every floor in your home should be a refuge that’s warm and comfy in the cold months 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 first floor.

This could simply be caused by the fact that most thermostats in a house are on the main 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 because of problems with your HVAC system. Some of these challenges can be solved somewhat quickly while others might call for more extensive and costly fixes. Here, the professionals at Home Furniture, Plumbing & Heating 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 getting hotter than the downstairs can be chalked up 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. Lack of insulation in the attic or roof can exacerbate this issue by letting heat transfer from the roof into the upstairs rooms.

Another common reason is that the HVAC system is not big enough to cool the entire home, causing it to have difficulty cooling the upstairs effectively.

To fix 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 Home Furniture, Plumbing & Heating 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 So Cold/Not Heating?

When the downstairs of your home is warm, but it’s extremely chilly upstairs, that can cause a very chilly night for anyone whose bedrooms are on the upper floor. The most prevalent reasons an upstairs not heating like it is supposed 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, creating colder temperatures on higher floors. It’s important to make sure your home has a thick, level layer of insulation in the attic and proper insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a fundamental role in circulating conditioned air throughout different rooms of the building. However, issues with the ductwork can contribute to the upstairs being colder than the lower floor. A typical cause for this is improper airflow balance. The ducts may not be the right size or in the appropriate layout, causing 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 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 are poorly positioned, it can limit air circulation and cause inadequate heating or cooling. In addition, leaks or gaps in the ductwork can lead to air loss, lowering 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 inspected by skilled professionals like the team at Home Furniture, 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 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 ground level of your house, an HVAC zoning system could be an effective solution.

An HVAC zoning system breaks the home 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 installing a  zoning system, homeowners can control 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 Kankakee, call Home Furniture, Plumbing & Heating. 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 issue in multi-floor homes is when the upper floors are more humid than the lower level.

A typical cause for excess upper floor humidity is poor ventilation on the upper floor, which can result in 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. In addition, if there are any leaks or plumbing concerns on the upper floor, that can also lead to extra moisture in that area of a home.

To manage humidity problems, homeowners can add more 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 critical.

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