Every floor in your home should be a sanctuary that’s warm and cozy in the winter season 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 merely 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 differences between the upstairs and downstairs could also be caused by issues with your HVAC system. Some of these challenges can be sorted out relatively quickly while others might call for more extensive and costly fixes. Here, the team at Solar Air Inc. will help you solve 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 feeling hotter than the downstairs can be chalked up to several factors. First, 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 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 fight to cool the upstairs sufficiently.

To tackle these issues, homeowners could put in additional insulation in the attic and make sure their home has proper ventilation. If there’s concern the air conditioning unit is the right size for the home, call an experienced HVAC company like Solar Air Inc. inspect the unit. A skilled 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 freezing upstairs, that could result in a frosty night for anyone whose bedrooms are on the upper floor. The most prevalent reasons an upstairs not heating like it is supposed to are the insulation levels and the ductwork.

Inadequate insulation enables cold air to filter through the home’s attic or walls and contribute to heat loss, creating colder temperatures upstairs. It’s crucial to make sure your home has a deep, 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 very important role in disseminating conditioned air throughout different locations of the building. However, troubles with the ductwork can result in the upstairs being colder than the downstairs. A common cause for this is improper airflow balance. The ducts may not be the proper size or in the appropriate layout, which results 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 story.

Another potential problem area in the ductwork is the layout of the supply and return vents. If there are fewer vents on the upper floor or they are poorly placed, it can restrict air circulation and cause inadequate heating or cooling. Also, leaks or gaps in the ductwork can cause air loss, reducing 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 trusted HVAC pros like the team at Solar Air Inc. to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in new vents or adjusting existing ones can help enhance airflow and ensure a more even 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 lower floors of your house, an HVAC zoning system could be a useful solution.

An HVAC zoning system separates the household into different zones, which each have their own thermostat and damper system so the homeowner can customize the heating or cooling of each zone.

This system can be particularly useful in situations where the upstairs of a multi-story home is too hot or too 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 effortlessly.

To find out more about an HVAC zoning system in Fort Lauderdale, call Solar Air 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 enhance the comfort in your home.

Why Is it So Humid Upstairs?

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 upper floors are more humid than the first floor.

A typical cause 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, insufficient 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 problems on the upper floor, that can also cause unwanted moisture in that level of a home.

To fix humidity problems, homeowners can add more ventilation by getting fans or opening windows to promote airflow. Adding more 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 imperative.

Depending on the levels of moisture found in the home, a whole-home dehumidifier could be another helpful tool to manage humidity in the residence.