Every floor in your home should be a retreat that’s warm and comfy in the cold months and cool and comfortable in the summer. However, residents in some homes with multiple levels 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 the majority of 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 variations between the upstairs and downstairs could also be because of problems with your HVAC system. Some of these difficulties can be solved fairly quickly while others might require more extensive and costly fixes. Here, the professionals at West Jefferson Plumbing and Heating, Inc. 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 becoming hotter than the downstairs can be attributed to several factors. For starters, heat rises, so it’s normal 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 air conditioning is not big enough to cool the entire home, causing it to fight to cool the upstairs properly.

To fix these issues, homeowners could install additional insulation in the attic and make sure their home has proper ventilation. If there’s a question of whether the AC is the ideal size for the home, call an experienced HVAC company like West Jefferson Plumbing and Heating, 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 So Cold/Not Heating?

When the downstairs of your home is warm, but it’s extremely chilly upstairs, that makes for an ice-cold night for anyone whose bedrooms are on the upper floor. The most prevalent explanations for an upstairs not heating like it is supposed to are the insulation levels and the ductwork.

Inadequate insulation permits cold air to leak through the home’s attic or walls and contribute to heat loss, resulting in colder temperatures on higher floors. It’s important to make sure your home has a thick, 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 critical role in circulating conditioned air throughout different rooms of the building. However, troubles with the ductwork can cause the upstairs being colder than the main level. A common explanation for this is improper airflow balance. The ducts may not be the right size or configuration, causing an uneven distribution of air between the floors. This can cause more warm air to be directed to the downstairs, causing 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 floor or they are poorly positioned, it can reduce air circulation and cause inferior heating or cooling. Also, leaks or gaps in the ductwork can lead to air loss, lowering the overall efficiency of the HVAC system and exacerbating the temperature difference.

To find out why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by experienced professionals like the team at West Jefferson Plumbing and Heating, Inc. to identify any imbalances, leaks or inadequacies. Sealing leaks and putting in new vents or adjusting existing ones can help increase 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 lower floors of your house, an HVAC zoning system could be an effective solution.

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

This system can be especially beneficial in situations where the upstairs of a multi-story home is very hot or extremely cold while the main floor is comfortable. By investing in a  zoning system, homeowners can regulate the temperature independently in each zone, enabling them to address specific hot or cold spots effectively.

To find out more about an HVAC zoning system in West Jefferson, call West Jefferson Plumbing and Heating, 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 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 upstairs is more humid than the lower level.

A typical cause for excess upper floor humidity is poor 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 outdoors infiltrate the upstairs rooms. In addition, if there are any leaks or plumbing problems on the upper floor, that can also cause extra moisture in that level of a home.

To deal with humidity problems, homeowners can increase 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 protect against external moisture from entering the upstairs. Identifying 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 your home.