In Dallas like many other areas of the United States, seasonal temperature variance can have a significant impact on a building’s Thermal Efficiency, it’s energy use and occupant comfort. With ever competitive markets where overheads such as heating and cooling can make a dramatic difference to a company’s bottom line the design process, with the goal of having a more thermally efficient building is more important than ever. Alpine Roofing Construction with is many years of experience understanding heat transfer and how building materials can make a dramatic improvement in the thermal efficiency of a building.
The intrusion and escape of heat is the leading factor that determines the energy efficiency of a building and its corresponding operating costs to maintain a comfortable temperature level. If left uninterrupted heat will flow from an area of higher temperature to lower temperature. During the summer, this leads to heat being lost to the outside of the building and in the winter heat entering the building.
Glass, concrete and metals transfer heat easily and are known as conductors if left uninsulated can have a dramatic impact on a building’s Thermal Efficiency. While other materials such as fiberglass and foam are insulators because of their high resistance to heat transfer.
There are three different ways through which heat transfers in and out of a building — conduction, convection, and radiation. In a building, these modes of heat transfer all occur at the same time and play an important role in the heat balance of a building.
Conduction is probably the best known and the easiest to understand heat transfer mode. It takes place when a material separates an area of high temperature from an area of low temperatures, such as a wall.
Convection, the second most common heat transfer mode, occurs as a result of liquid or gas moving over a surface, such as wind blowing against a building. There are two types of convection — forced and natural. Natural convection occurs when the movement of liquid or gas is caused by density differences, and in forced convection, the movement of the liquid or gas is caused by outside forces.
Radiation involves the transfer of invisible electromagnetic heat waves from one object of higher temperature, such as the sun, to another of lower temperature, such as a human body. Ask us about Radiant Heat Barriers and how they can help your buildings Thermal Efficiency.
Understanding the role these three play in the construction of your building and in particular your roofing system can make a dramatic impact on your buildings Thermal Efficiency.
Insulation materials and building envelope systems are characterized by their resistance to heat flow. Material performance can be rated according to thermal conductivity (k), thermal conductance (C) and thermal resistance (R-value).
When planning your next roofing system or construction project talk to Alpine Roofing Construction to get a greater understanding of how Thermal Efficiency can lead to greater savings in your buildings seasonal energy costs. More information can also be gathered from the government’s energy website. Click Here for more information.