Your entire residence should be a refuge that’s warm and toasty in the winter and cool and comfortable in the summer. However, families who live 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 ground 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 differences between the upstairs and downstairs could also be due to issues with your HVAC system. Some of these difficulties can be fixed fairly quickly while others might require more extensive and costly fixes. Here, the specialists at Jack's Heating, Cooling, Stoves & Fireplaces 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 attributed to several factors. First, 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 make this worse by allowing heat transfer from the roof into the upstairs rooms.

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

To address these issues, homeowners could install additional insulation in the attic and make sure their home has proper ventilation. If there’s a possibility the AC is the ideal size for the home, call an experienced HVAC company like Jack's Heating, Cooling, Stoves & Fireplaces inspect the unit. A knowledgeable professional also can help locate a unit that's better suited for your home if you are considering 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 can cause a frosty night for anyone whose bedrooms are on the upper floor. The most prevalent explanations for an upstairs not heating like it should 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, creating colder temperatures on higher floors. It’s crucial 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 distributing conditioned air throughout different locations of the building. However, troubles with the ductwork can result in the upstairs being colder than the main level. A common explanation for this is improper airflow balance. The ducts may not be the correct size or configuration, causing 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 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 floor or they aren't well installed, it can restrict air circulation and cause inferior heating or cooling. In addition, leaks or gaps in the ductwork can cause air loss, lowering the overall efficiency of the HVAC system and actually making the temperature difference worse.

To understand why the upstairs is colder than the downstairs, homeowners should hve their ductwork inspected by experienced experts like the team at Jack's Heating, Cooling, Stoves & Fireplaces to identify any imbalances, leaks or inadequacies. Sealing leaks and adding additional 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 lower floors of your home, an HVAC zoning system could be a great solution.

An HVAC zoning system divides the home into distinctive 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 particularly helpful in scenarios 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 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 Alliance, call Jack's Heating, Cooling, Stoves & Fireplaces. We’ve created 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 issue in multi-floor homes is when the upper floors are more humid than the lower level.

A common cause for excess upper floor humidity is poor ventilation on the upper floor, which can cause higher humidity levels. As is often the case with temperature differences between floors, inadequate insulation or sealing in the attic or walls may allow warm, humid air from outside infiltrate the upstairs rooms. Plus, if there are any leaks or plumbing issues on the upper floor, that can also create unwanted moisture in that area of a home.

To correct humidity problems, homeowners can improve 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 prevent 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 worthwhile tool to manage humidity on the upper and lower floors.