Your entire residence should be a retreat that’s warm and comfy in the winter and cool and comfortable in the summer. However, owners of some homes with multiple levels find the upper floor is stubbornly hotter or colder than the rooms on ground level.

This could merely be due to the fact most thermostats in a house are on the first 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 discrepancies between the upstairs and downstairs could also be caused by trouble 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 specialists at Farnell Mechanical, 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 becoming hotter than the downstairs can be traced to several factors. Number one, heat rises, so it’s natural for the second floor of a home to get hotter than the main floor. Lack of insulation in the attic or roof can make this worse by letting heat transfer from the roof into the upstairs rooms.

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

To fix these issues, homeowners could add additional insulation in the attic and make sure their home has proper ventilation. If there’s a question of whether the air conditioner is the ideal size for the home, call an experienced HVAC company like Farnell Mechanical, Inc. inspect the unit. A skilled 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 very cold upstairs, that can cause an ice-cold night for anyone whose bedrooms are on the upper floor. The most frequent explanations for an upstairs not heating like it should are the insulation levels and the ductwork.

Inadequate insulation permits cold air to seep through the home’s attic or walls and contribute to heat loss, creating colder temperatures on higher floors. It’s essential to make sure your home has a solid, 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 critical role in circulating conditioned air throughout different locations of the building. However, problems with the ductwork can result in the upstairs being colder than the main level. A typical reason 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 go downstairs, which creates insufficient airflow—which is the heated air—on the upper level.

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 not correctly positioned, it can limit air circulation and cause substandard heating or cooling. Also, leaks or gaps in the ductwork can cause air loss, decreasing the overall efficiency of the HVAC system and exacerbating the temperature difference.

To understand why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by skilled experts like the team at Farnell Mechanical, Inc. to identify any imbalances, leaks or inadequacies. Sealing leaks and installing new vents or adjusting existing ones can help improve 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 rest of your house, an HVAC zoning system could be a great solution.

An HVAC zoning system breaks the home into distinctive 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 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 implementing a  zoning system, homeowners can control the temperature independently in each zone, allowing them to address specific hot or cold spots effortlessly.

To learn more about an HVAC zoning system in Auburn and Opelika, call Farnell Mechanical, Inc.. We’ve developed 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 issue in multi-floor homes is when the higher levels are more humid than the lower level.

A typical reason for excess upper floor humidity is weak 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 let warm, humid air from outdoors infiltrate the upstairs rooms. And, if there are any leaks or plumbing problems on the upper floor, that can also cause extra moisture in that area of a home.

To manage humidity problems, homeowners can improve ventilation by installing fans or opening windows to promote airflow. Proper 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 imperative.

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.