Every floor in your home should be a retreat that’s warm and comfy 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 rooms on ground level.

This could simply be caused by the fact that most thermostats in a house are on the main floor, which is where people spend the greatest amount 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 variations between the upstairs and downstairs could also be because of trouble with your HVAC system. Some of these issues can be resolved somewhat quickly while others might call for more extensive and costly fixes. Here, the professionals at I-Deal HVAC will help you figure out why the upstairs of your home is hotter than downstairs, or vice versa.

Why Is My Upstairs So Hot?

The phenomenon of the upstairs of a two-story home feeling hotter than the downstairs can be attributed to several factors. Number one, heat rises, so it’s natural for the second floor of a home to get hotter than the ground floor. Not enough insulation in the attic or roof can exacerbate this issue by letting heat transfer from the roof into the upstairs rooms.

Another common reason is that the air conditioner is not big enough to cool the entire home, causing it to fight to cool the upstairs sufficiently.

To fix these issues, homeowners could install extra insulation in the attic and make sure their home has adequate ventilation. If there’s a possibility the air conditioning unit is the proper size for the home, call an experienced HVAC company like I-Deal HVAC inspect the unit. A qualified professional also can help select 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 makes for an ice-cold night for anyone whose bedrooms are on the upper floor. The most prevalent causes of an upstairs not heating like it ought 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 on higher floors. It’s crucial to make sure your home has a deep, 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 fundamental role in circulating conditioned air throughout different locations of the building. However, troubles with the ductwork can result in the upstairs being colder than the downstairs. A typical explanation 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 flow downstairs, causing insufficient airflow—which is the heated air—on the upper level.

Another possible issue with the ductwork is the location of the supply and return vents. If there are fewer vents on the upper story or they are poorly located, it can reduce air circulation and cause inadequate heating or cooling. In addition, leaks or gaps in the ductwork can allow 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 examined by experienced professionals like the team at I-Deal HVAC to identify any imbalances, leaks or inadequacies. Sealing leaks and installing 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 rest of your house, an HVAC zoning system could be a useful solution.

An HVAC zoning system divides the household 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 useful in situations where the upstairs of a multi-story home is very hot or too cold while the main floor is comfortable. By installing a  zoning system, homeowners can regulate 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 Albuquerque, call I-Deal HVAC. 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 upper floors are more humid than the lower level.

A typical explanation for excess upper floor humidity is weak ventilation on the upper floor, which can cause increased 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 the house infiltrate the upstairs rooms. In addition, if there are any leaks or plumbing issues on the upper floor, that can also create unwanted moisture in that section of a home.

To manage humidity problems, homeowners can increase 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 protect against external moisture from entering the upstairs. Finding 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 valuable tool to control humidity in the residence.