Convenience when doing activity in a room is not only dependent on the temperature of the room. It is also related to the structural elements that work to withstand the light exposure and filter it so that heat does not get into the room.
Maintaining a convenient temperature can be done by reducing heat transfer from outside to inside the building. Conversely, we should hold the cold temperature transfer from inside to outside the building. This transfer can occur in three processes, namely convection, conduction, and radiation.
- Conduction can happen because there is heat transfer through conductors. The easiest example is a cup of tea can be hot because it holds hot water.
- Convection is the heat transfer that occurs due to the movement of air, hot air rises up and the cold air will fall down. Wind can bring hot air into the house.
- Radiation is caused by the heat which is absorbed in materials that have the ability to increase the temperature of the object. The easiest example is a car parked in the sun. Heat radiation will cause the contents of a closed car also hot. Heat radiation which is accumulated in the car is the cause. In fact it could be the temperature outside the car is not that hot.
If you often feel hot and uncomfortable because of the heat in the home, it may not caused by the hot temperatures, but other factors. Here is some information on the main factors that can cause the air becomes hot and how to deal with it:
- The air is not flowing. This often occurs in buildings that have only one opening in the front of the house. The heat can also increase when there is no air ventilation in the kitchen section. Cooking area is one of the natural heaters at home. The solution is to create openings such as air holes that can draw air from one room to another room.
- Direction of the building. On the west-facing building, a room which is adjacent with the west wall is getting warmer. Heat absorption is higher because of the nature of the brick material, i.e. soil which can absorb and store heat. The heat generated can reach 2-3 degrees Celsius of the ambient temperature which is not affected by heat. The solution is to use heat resistant paint. You can also use secondary skin to reduce heat exposure on the walls.
- Excessive heat absorption in the roof and ceiling. The heat from roof space can flow into the room, moreover when the roof is made of good thermal conductor material such as metal roofing. Concrete roof often saves heat which can raise the temperature of the room below. The solution for preventing heat in the roof area can be done by painting roofs with weatherproof paint that has the ability to withstand the heat. You can also add a heat sink like bubbles coating with a layer of aluminum on the top and bottom. Be careful with this coating. Cheap materials usually do not use aluminum, but fabric made of polyester which is actually worse in heat absorption.
Image credit: sunsetblinds.ca