Every floor in your home should be a refuge that’s warm and cozy in the winter season and cool and comfortable in the summer. However, residents in some homes with multiple levels find the upper floor is stubbornly hotter or colder than the first floor.

This could just be due to the fact most thermostats in a house are on the main 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 discrepancies between the upstairs and downstairs could also be caused by issues with your HVAC system. Some of these challenges can be fixed relatively quickly while others might require more extensive and costly fixes. Here, the team at Brookwood Inc 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 ground floor. Insufficient 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 air conditioner is not powerful enough to cool the entire home, causing it to struggle to cool the upstairs effectively.

To deal with these issues, homeowners could add extra insulation in the attic and make sure their home has proper ventilation. If there’s a possibility the air conditioner is the ideal size for the home, call an experienced HVAC company like Brookwood Inc inspect the unit. A knowledgeable professional also can help locate a unit that's better suited for your home if you want air conditioning installation or replacement.

Why Is My Upstairs Colder/Not Heating?

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

Inadequate insulation permits cold air to filter through the home’s attic or walls and contribute to heat loss, creating colder temperatures on higher floors. It’s essential to make sure your home has a solid, 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 critical role in distributing conditioned air throughout different areas of the building. However, problems with the ductwork can result in the upstairs being colder than the lower floor. A common cause 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 flow downstairs, which creates insufficient airflow—which is the heated air—on the higher floors.

Another potential problem area in the ductwork is the placement of the supply and return vents. If there are fewer vents on the upper story or they aren't well positioned, it can limit air circulation and cause inferior heating or cooling. In addition, leaks or gaps in the ductwork can allow air loss, lowering the overall efficiency of the HVAC system and exacerbating the temperature difference.

To find out why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by experienced HVAC pros like the team at Brookwood Inc to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in new vents or adjusting existing ones can help improve 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 rest of your house, an HVAC zoning system could be a useful 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 especially beneficial in situations where the upstairs of a multi-story home is very hot or too 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 find out more about an HVAC zoning system in Newton, call Brookwood Inc. We’ve designed 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 the Humidity So High 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 lower level.

A common reason for excess upper floor humidity is poor 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 outside the house infiltrate the upstairs rooms. And, if there are any leaks or plumbing problems on the upper floor, that can also create extra moisture in that section of a home.

To deal with humidity problems, homeowners can increase ventilation by using 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. Identifying 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 helpful tool to control humidity in your home.