Third Floor Hot Because Heat Rises

In an enclosed room the hottest air will always be at the top or near the ceiling which is why ceiling fans are used to circulate heated air from top to bottom.

Third floor hot because heat rises.

First why is the second floor hot. Two story homes often require more cool airflow to the second floor during the summertime and more warm airflow on the first floor in the wintertime. So your upstairs has a natural tendency to be warmer than lower levels. Heat from any source naturally rises.

This is because heated air is thinner and less dense than cooler air. Physics is the challenge here because hot air rises and cold air sinks. You have warmth rising from the first floor plus the sun beating down on the roof and those two factors work together to make the third floor the hottest place in the house. Unfortunately for many owners of two story homes varying heat loss or heat gain is a common problem.

As the weather warms up indoor temperatures are starting to rise as well. These small heating and cooling systems focus on one room so you can control the temperature independently in each room where a unit is installed. Don t wait until summer to correct this issue. Your roof absorbs a ton of heat from the sun unless you have a lot of shady tree cover.

Although true this is far from the main culprit of an uncomfortable upstairs and there is plenty that can be done to even the temperatures in your 2 story home. The most common rationale for a warmer second floor is that heat rises.