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, families who live in some two-story homes find the upper floor is stubbornly hotter or colder than the main floor.

This could just be because 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 as a result they tend 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 sorted out fairly quickly while others might require more extensive and costly fixes. Here, the team at Scott Temperature will help you figure out why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is It Hotter Upstairs?

The phenomenon of the upstairs of a two-story home getting hotter than the downstairs can be chalked up 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 worsen this problem by permitting 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 adequately.

To deal with these issues, homeowners could put in extra insulation in the attic and make sure their home has sufficient ventilation. If there’s a question of whether the AC is the proper size for the home, call an experienced HVAC company like Scott Temperature inspect the unit. A skilled 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 freezing upstairs, that makes for a frosty night for anyone whose bedrooms are on the upper floor. The most common causes of an upstairs not heating like it should are the insulation levels and the ductwork.

Inadequate insulation allows cold air to leak through the home’s attic or walls and contribute to heat loss, causing colder temperatures on the upper levels. It’s crucial to make sure your home has a thick, 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 locations of the building. However, troubles with the ductwork can cause the upstairs being colder than the main level. A common cause for this is improper airflow balance. The ducts may not be the correct size or in the appropriate layout, resulting in an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, which creates insufficient airflow—which is the heated air—on the upper level.

Another factor with ductwork is the layout of the supply and return vents. If there are fewer vents on the upper floor or they are poorly positioned, it can limit air circulation and cause inferior heating or cooling. Additionally, leaks or gaps in the ductwork can cause air loss, decreasing 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 checked by skilled experts like the team at Scott Temperature to identify any imbalances, leaks or inadequacies. Sealing leaks and installing new vents or adjusting existing ones can help enhance airflow and ensure a more consistent temperature balance between the upstairs and downstairs.

How You Can Fix a Hot or Cold Upstairs?

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

An HVAC zoning system separates the household 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 very effective in situations where the upstairs of a multi-story home is too hot or really cold while the main floor is comfortable. By setting up a  zoning system, homeowners can control the temperature independently in each zone, allowing them to address specific hot or cold spots effortlessly.

To discover more about an HVAC zoning system in Lawrence, call Scott Temperature. 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 issue in multi-floor homes is when the upstairs is more humid than downstairs.

A typical cause for excess upper floor humidity is poor ventilation on the upper floor, which can produce higher humidity levels. As is often the case with temperature differences between floors, poor insulation or sealing in the attic or walls may let warm, humid air from outdoors infiltrate the upstairs rooms. And, if there are any leaks or plumbing concerns on the upper floor, that can also create excess moisture in that level of a home.

To manage humidity problems, homeowners can add more ventilation by installing fans or opening windows to promote airflow. Appropriate levels of insulation  in the attic and better sealing the attic and walls can help stop 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 in your home.