What are calculations for thermal bridging?
The heat transmission through a building component that is brought on by a break in the insulation is known as thermal bridging. This can happen at the intersections of various materials, like the frames of windows and doors, or at structural components like beams and columns.
Heat loss and, in some situations, condensation are both consequences of thermal bridging. This may result in issues like mould development and decreased energy efficiency.
Calculations of thermal bridging are used to determine how much heat is lost as a result of thermal bridging. Buildings that are more energy-efficient may be designed and constructed using the knowledge provided.
How are Calculations for Thermal Bridging Conducted?
Thermal bridging calculations may be performed in several methods. Utilising software on a computer is a typical approach. The heat transport through the building element is commonly modelled by these programmes using the finite element approach.
Utilising a streamlined computation technique is a further approach. Although these techniques are easier to apply, they are less precise than computer programmes.
Though calculations for thermal bridging may be performed for any component of a structure, they are most frequently performed for windows, doors, and structural components.
Building codes and calculations for thermal bridging
Building codes in various nations mandate the completion of thermal bridging calculations for a variety of building types. For instance, all new structures constructed in accordance with Building Regulations in the United Kingdom must undergo thermal bridging calculations.
Countries have different standards for thermal bridging calculations. To find out what is needed for your project, it is crucial to examine the local building codes.
Tips for Lowering Thermal Bridging
There are several methods for lowering thermal bridging. Insulation at the intersections of several materials is one approach. Utilising thermal break materials is another option. Low thermal conductivity materials are those that act as thermal breakers. They are primarily utilised to lessen heat transmission at the intersections of several materials.
Additional techniques to lessen thermal bridging include:
upgrading the insulation
the use of double or triple glazing
using insulated window and door frames
reducing thermal bridges while designing buildings
Conclusion
Calculations of thermal bridging are a crucial tool for designing and constructing energy-efficient structures. You may contribute to building a more cosy and environmentally friendly house by learning about thermal bridging and how to eliminate it.
Additional advice for minimising thermal bridging is provided here:
Utilise ongoing insulation. This implies that there shouldn’t be any gaps or fractures in the insulation from one side of the building to the other.
Fill in any gaps and cracks. This includes gaps in the walls and foundation as well as cracks around windows and doors.
Use weatherstripping and caulking. This will aid in plugging any holes and stop heat from escaping.
Pick the appropriate materials. Concrete and metal are examples of materials with a higher heat conductivity than other types. They will therefore more readily conduct heat as a result. To minimise heat loss, use materials with a low thermal conductivity.
You may lessen thermal bridging and improve the energy efficiency of your home by implementing these suggestions.