Your entire home should be a refuge that’s warm and comfy in the cold months 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 due to the fact most thermostats in a house are on the first 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 discrepancies between the upstairs and downstairs could also be caused by issues with your HVAC system. Some of these challenges can be resolved somewhat quickly while others might necessitate more extensive and costly fixes. Here, the professionals at LTS Plumbing & Heating Inc. will help you determine 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 feeling hotter than the downstairs can be attributed to several factors. For starters, 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 make this worse by permitting heat transfer from the roof into the upstairs rooms.

Another common reason is that the HVAC system is not strong enough to cool the entire home, causing it to fight to cool the upstairs effectively.

To fix these issues, homeowners could install additional insulation in the attic and make sure their home has adequate ventilation. If there’s a question of whether the air conditioner is the ideal size for the home, call an experienced HVAC company like LTS Plumbing & Heating Inc. inspect the unit. A qualified professional also can help locate a unit that's better suited for your home if you want air conditioning installation or replacement.

Why Is My Upstairs Always Cold/Not Heating?

When the downstairs of your home is warm, but it’s freezing upstairs, that makes for a very chilly night for anyone whose bedrooms are on the upper floor. The most prevalent causes of an upstairs not heating like it should 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 upstairs. It’s essential 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 fundamental role in distributing conditioned air throughout different rooms of the building. However, issues with the ductwork can cause the upstairs being colder than the lower floor. A typical cause for this is improper airflow balance. The ducts may not be the correct size or design, creating 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 higher floors.

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 placed, it can restrict air circulation and cause inadequate heating or cooling. Additionally, leaks or gaps in the ductwork can cause air loss, decreasing the overall efficiency of the HVAC system and actually making the temperature difference worse.

To determine why the upstairs is colder than the downstairs, homeowners should hve their ductwork inspected by experienced professionals like the team at LTS Plumbing & Heating Inc. to identify any imbalances, leaks or inadequacies. Sealing leaks and installing new vents or adjusting existing ones can help enhance airflow and ensure a more even 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 residence, an HVAC zoning system could be a useful solution.

An HVAC zoning system separates the residence into distinctive 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 helpful in situations where the upstairs of a multi-story home is very hot or too cold while the main floor is comfortable. By setting up a  zoning system, homeowners can manage the temperature independently in each zone, enabling them to address specific hot or cold spots easily.

To find out more about an HVAC zoning system in Shamokin and Sunbury, call LTS Plumbing & Heating Inc.. We’ve created 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 problem in multi-floor homes is when the higher levels are more humid than the lower level.

A typical explanation for excess upper floor humidity is inadequate ventilation on the upper floor, which can produce increased humidity levels. As is often the case with temperature differences between floors, inadequate 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 create extra moisture in that area of a home.

To manage 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 stop 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 helpful tool to control humidity on the upper and lower floors.