Your entire residence should be a sanctuary that’s warm and cozy 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 main floor.
This could just 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 they set the temperature according to how it feels on the first floor.
However, temperature differences between the upstairs and downstairs could also be because of trouble with your HVAC system. Some of these challenges can be resolved fairly quickly while others might require more extensive and costly fixes. Here, the professionals at PS Cool Heat 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 chalked up to several factors. First, heat rises, so it’s normal for the second floor of a home to get hotter than the ground floor. Lack of insulation in the attic or roof can exacerbate this issue by permitting heat transfer from the roof into the upstairs rooms.
Another common reason is that the air conditioner is not strong enough to cool the entire home, causing it to have difficulty cooling the upstairs sufficiently.
To fix 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 PS Cool Heat inspect the unit. A knowledgeable professional also can help locate a unit that's better suited for your home if you need 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 can cause an ice-cold night for anyone whose bedrooms are on the upper floor. The most common reasons 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, resulting in colder temperatures upstairs. It’s essential to make sure your home has a thick, level layer of insulation in the attic and proper insulation in the walls to keep the cold out and the heat inside.
The ductwork in a home plays a fundamental role in disseminating conditioned air throughout different areas of the building. However, problems with the ductwork can contribute to the upstairs being colder than the lower floor. A frequently reported cause for this is improper airflow balance. The ducts may not be the proper 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, leaving insufficient airflow—which is the heated air—on the upper story.
Another potential problem area in the ductwork is the placement of the supply and return vents. If there are fewer vents on the upper level or they are poorly installed, it can reduce air circulation and cause substandard heating or cooling. Additionally, leaks or gaps in the ductwork can lead to air loss, reducing the overall efficiency of the HVAC system and making the temperature difference more pronounced.
To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by skilled experts like the team at PS Cool Heat to identify any imbalances, leaks or inadequacies. Sealing leaks and installing more vents or adjusting existing ones can help increase airflow and ensure a more even 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 breaks the residence 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 very helpful in scenarios where the upstairs of a multi-story home is quite hot or really cold while the main floor is comfortable. By implementing a zoning system, homeowners can control the temperature independently in each zone, enabling them to address specific hot or cold spots easily.
To learn more about an HVAC zoning system in Highlands Ranch, call PS Cool Heat. 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 it So Humid 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 upstairs is more humid than the lower level.
A typical reason for excess upper floor humidity is weak ventilation on the upper floor, which can cause greater 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 outdoors infiltrate the upstairs rooms. And, if there are any leaks or plumbing issues on the upper floor, that can also lead to unwanted moisture in that section of a home.
To manage humidity problems, homeowners can increase 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. Locating 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 in the residence.
