Your entire residence should be a refuge that’s warm and cozy in the cold months and cool and comfortable in the summer. However, residents in some two-story homes 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 main 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 differences between the upstairs and downstairs could also be caused by issues with your HVAC system. Some of these difficulties can be resolved relatively quickly while others might necessitate more extensive and costly fixes. Here, the specialists at Home Furniture, Plumbing & Heating will help you determine 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 becoming hotter than the downstairs can be traced to several factors. For starters, heat rises, so it’s natural for the second floor of a home to get hotter than the ground floor. Insufficient insulation in the attic or roof can worsen this problem by letting 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 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 adequate ventilation. If there’s concern the air conditioning unit is the correct size for the home, call an experienced HVAC company like Home Furniture, Plumbing & Heating inspect the unit. A qualified professional also can help find a unit that's better suited for your home if you need 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 could result in a frosty night for anyone whose bedrooms are on the upper floor. The most common explanations for an upstairs not heating like it should 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, resulting in colder temperatures upstairs. It’s important to make sure your home has a solid, level layer of insulation in the attic and adequate insulation in the walls to keep the cold out and the heat inside.

The ductwork in a home plays a very important role in disseminating conditioned air throughout different rooms of the building. However, issues with the ductwork can result in the upstairs being colder than the downstairs. A frequently reported cause for this is improper airflow balance. The ducts may not be the proper size or configuration, resulting in an uneven distribution of air between the floors. This can cause more warm air to flow downstairs, leaving insufficient airflow—which is the heated air—on the upper level.

Another factor with ductwork is the placement of the supply and return vents. If there are fewer vents on the upper story or they aren't well placed, it can restrict air circulation and cause substandard heating or cooling. In addition, leaks or gaps in the ductwork can cause air loss, decreasing the overall efficiency of the HVAC system and exacerbating the temperature difference.

To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork examined by trusted professionals like the team at Home Furniture, Plumbing & Heating to identify any imbalances, leaks or inadequacies. Sealing leaks and installing more 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 lower floors of your residence, an HVAC zoning system could be a highly effective solution.

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

To find out 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 work 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 problem in multi-floor homes is when the higher levels are more humid than the lower level.

A frequent explanation for excess upper floor humidity is inadequate ventilation on the upper floor, which can result in increased humidity levels. As is often the case with temperature differences between floors, poor 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 problems on the upper floor, that can also cause unwanted moisture in that level of a home.

To deal with humidity problems, homeowners can add more ventilation by using fans or opening windows to promote airflow. Appropriate levels of insulation  in the attic and better sealing the attic and walls can help protect against external moisture from entering the upstairs. Finding 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 on the upper and lower floors.