Every floor in your home should be a retreat 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 rooms on ground level.

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 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 because of trouble with your HVAC system. Some of these difficulties can be sorted out relatively quickly while others might require more extensive and costly fixes. Here, the professionals at Stanford Heating & Cooling will help you solve 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 getting 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 first floor. Poor insulation in the attic or roof can worsen this problem by letting 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 have difficulty cooling the upstairs properly.

To fix these issues, homeowners could put in more insulation in the attic and make sure their home has adequate ventilation. If there’s a question of whether the AC is the correct size for the home, call an experienced HVAC company like Stanford Heating & Cooling inspect the unit. A knowledgeable professional also can help find 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 extremely chilly upstairs, that makes for a very chilly night for anyone whose bedrooms are on the upper floor. The most common causes of an upstairs not heating like it is supposed to are the insulation levels and the ductwork.

Inadequate insulation allows cold air to filter through the home’s attic or walls and contribute to heat loss, causing colder temperatures on the upper levels. It’s important to make sure your home has a solid, 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 areas of the building. However, issues with the ductwork can contribute to the upstairs being colder than the downstairs. A frequently reported cause for this is improper airflow balance. The ducts may not be the right size or configuration, which results 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 higher floors.

Another factor with ductwork is the location of the supply and return vents. If there are fewer vents on the upper level or they are poorly positioned, it can reduce air circulation and cause inadequate heating or cooling. Additionally, leaks or gaps in the ductwork can allow air loss, decreasing the overall efficiency of the HVAC system and making the temperature difference more pronounced.

To find out why the upstairs is colder than the downstairs, homeowners should hve their ductwork checked by trusted experts like the team at Stanford Heating & Cooling to identify any imbalances, leaks or inadequacies. Sealing leaks and adding additional vents or adjusting existing ones can help enhance airflow and ensure a better temperature balance between the upstairs and downstairs.

What Do I Do to Fix a Hot/Cold Upstairs?

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

An HVAC zoning system breaks the home 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 beneficial in scenarios 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 control 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 Bloomfield, call Stanford Heating & Cooling. 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 problem in multi-floor homes is when the higher levels are more humid than downstairs.

A frequent explanation 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 allow warm, humid air from outside infiltrate the upstairs rooms. And, if there are any leaks or plumbing issues on the upper floor, that can also lead to excessive moisture in that area of a home.

To address humidity problems, homeowners can improve 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 prevent 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.