Your entire residence should be a sanctuary that’s warm and comfy in the winter and cool and comfortable in the summer. However, owners of some multi-level residences find the upper floor is stubbornly hotter or colder than the first floor.

This could merely be because most thermostats in a house are on the first 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 variations between the upstairs and downstairs could also be due to trouble with your HVAC system. Some of these issues can be sorted out somewhat quickly while others might necessitate more extensive and costly fixes. Here, the specialists at Diedrick's Heating and Air Conditioning 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 feeling hotter than the downstairs can be attributed to several factors. First, heat rises, so it’s common for the second floor of a home to get hotter than the ground floor. Not enough insulation in the attic or roof can worsen this problem by permitting heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioning is not big enough to cool the entire home, causing it to struggle to cool the upstairs effectively.

To deal with these issues, homeowners could install extra insulation in the attic and make sure their home has proper ventilation. If there’s a question of whether the AC is the correct size for the home, call an experienced HVAC company like Diedrick's Heating and Air Conditioning inspect the unit. A qualified professional also can help find a unit that's better suited for your home if you want 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 could result in a frosty night for anyone whose bedrooms are on the upper floor. The most common 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, causing 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 circulating conditioned air throughout different areas of the building. However, problems with the ductwork can result in the upstairs being colder than the downstairs. A common cause for this is improper airflow balance. The ducts may not be the proper 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 factor with ductwork is the placement 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 inadequate heating or cooling. In addition, leaks or gaps in the ductwork can allow air loss, reducing 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 HVAC pros like the team at Diedrick's Heating and Air Conditioning 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 consistent temperature balance between the upstairs and downstairs.

Fixing the Hot or Cold Upstairs Problem?

If your upstairs is hotter or colder than the rest of your residence, an HVAC zoning system could be a great solution.

An HVAC zoning system separates the household into distinct 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 very beneficial in instances where the upstairs of a multi-story home is quite hot or extremely cold while the main floor is comfortable. By implementing 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 find out more about an HVAC zoning system in Seymour, call Diedrick's Heating and Air Conditioning. We’ve developed 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 My Upstairs So Humid?

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 downstairs.

A common reason for excess upper floor humidity is inadequate 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 let warm, humid air from outdoors 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 section of a home.

To address humidity problems, homeowners can improve 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 prevent external moisture from entering the upstairs. Locating 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 worthwhile tool to control humidity in your home.