Your entire residence should be a sanctuary that’s warm and comfy in the winter season 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 just be caused by the fact that 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 it makes sense to 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 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 team at B & G HVAC 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 feeling hotter than the downstairs can be attributed to several factors. Number one, heat rises, so it’s common for the second floor of a home to get hotter than the first floor. Not enough insulation in the attic or roof can worsen this problem by allowing heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioner is not strong enough to cool the entire home, causing it to have difficulty cooling the upstairs adequately.

To fix these issues, homeowners could put in extra insulation in the attic and make sure their home has proper ventilation. If there’s a possibility the air conditioning unit is the proper size for the home, call an experienced HVAC company like B & G HVAC 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 So Cold/Not Heating?

When the downstairs of your home is warm, but it’s freezing upstairs, that can cause a very chilly night for anyone whose bedrooms are on the upper floor. The most frequent reasons an upstairs not heating like it is supposed to are the insulation levels and the ductwork.

Inadequate insulation lets cold air to seep 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 rooms of the building. However, problems with the ductwork can result in the upstairs being colder than the lower floor. A common explanation for this is improper airflow balance. The ducts may not be the correct size or configuration, resulting in 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 higher floors.

Another factor with ductwork is the location of the supply and return vents. If there are fewer vents on the upper story or they are poorly positioned, it can limit air circulation and cause inferior heating or cooling. Also, leaks or gaps in the ductwork can lead to air loss, lowering the overall efficiency of the HVAC system and actually making the temperature difference worse.

To find out why the upstairs is colder than the downstairs, homeowners should hve their ductwork inspected by skilled experts like the team at B & G HVAC to identify any imbalances, leaks or inadequacies. Sealing leaks and installing more vents or adjusting existing ones can help increase airflow and ensure a more even temperature balance between the upstairs and downstairs.

Fixing the Hot or Cold Upstairs Problem?

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

An HVAC zoning system breaks 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 especially beneficial in instances where the upstairs of a multi-story home is too hot or really cold while the main floor is comfortable. By installing a  zoning system, homeowners can regulate the temperature independently in each zone, allowing them to address specific hot or cold spots easily.

To discover more about an HVAC zoning system in Marshalltown, call B & G HVAC. 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 My Upstairs So Humid?

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 downstairs.

A frequent reason for excess upper floor humidity is inadequate ventilation on the upper floor, which can result in greater humidity levels. As is often the case with temperature differences between floors, insufficient insulation or sealing in the attic or walls may permit warm, humid air from outside infiltrate the upstairs rooms. In addition, if there are any leaks or plumbing problems on the upper floor, that can also create excess moisture in that section of a home.

To deal with 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 protect against 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 useful tool to control humidity in your home.